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link=blue vlink=purple style='tab-interval:.5in'> <div class=WordSection1> <div> <h1><a name=top><span style='mso-fareast-font-family:"Times New Roman"'>NSF Project: Monitoring Dynamic Spatial Fields Using Responsive Geosensor Networks </span></a><span style='mso-fareast-font-family:"Times New Roman"'><o:p></o:p></span></h1> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b>Updated August 2010 </b></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>PI: <a href="http://www.spatial.maine.edu/~worboys/" target="_blank">Mike <span class=spelle>Worboys</span></a>, Co-PI: <span style='color:blue'><a href="http://www.spatial.maine.edu/~nittel/" target="_blank">Silvia <span class=spelle>Nittel</span></a> (<a href="http://www.geosensornetworks.net/" target="_blank">Geo-Sensor Networks Lab</a>)</span></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Graduate students: <a href="mailto:jixiang.jiang@maine.edu"><span class=spelle>Jixiang</span> Jiang</a> (PhD student), <a href="mailto:cheng.zhong@umit.maine.edu">Cheng <span class=SpellE><span class=spelle>Zhong</span></span></a> (MS student), <a href="http://www.spatial.maine.edu/~dxiao/" target="_blank"><span class=spelle>Danqing</span> Xiao</a> (MS student)</p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>This material is based upon work supported by the National Science Foundation under Grant No. 0534429.<br> Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF).</p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>The project abstract may be found <a href="http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0534429" target="_blank">here</a></p> <p class=style2><a href="#description"><span class=style21>Brief project description</span></a><span class=style21>&nbsp; <a href="#results">Research tasks and results</a>&nbsp; <a href="#Collaborations">Collaborations</a>&nbsp; <a href="#broadimpacts">Broad impacts</a>&nbsp;&nbsp; </span><a href="#resources"><span class=style21>Resources</span></a></p> <div class=MsoNormal align=center style='text-align:center'><span style='mso-fareast-font-family:"Times New Roman"'> <hr size=2 width="100%" align=center> </span></div> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a name=description><b><span style='font-size:18.0pt'>Brief project description</span></b></a></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Environmental phenomena, such as changes in global levels of atmospheric carbon dioxide, can be modeled as variations of measurements over regions of space and time, called <em>dynamic spatial fields</em>. The goal of this project is to provide efficient ways for sensor networks to monitor such fields, and to report significant changes in them. The focus is on qualitative changes, such as splitting or emergence of holes in a region of high activity. The approach is to develop qualitative and topological methods to deal with changes. We use a combinatorial map model of the sensor network, which is rich enough so that for each sensor, its position, and the distances and bearings of neighboring sensors are easily computed. The sensors are responsive to changes in the spatial field, so that sensors are activated in the vicinity of 'interesting' developments in the field, while sensors are deactivated in quiescent locations. All computation and message passing is local, with no centralized control. Optimization is addressed through use of techniques in qualitative representation and reasoning, and efficient update through a dynamic and responsive underlying spatial framework. </p> <p class=style4><a href="#top">[<span class=GramE>back</span> to top]</a></p> <div class=MsoNormal align=center style='text-align:center'><span style='mso-fareast-font-family:"Times New Roman"'> <hr size=2 width="100%" align=center> </span></div> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a name=results><b><span style='font-size:18.0pt'>Research tasks and results</span></b></a></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=style11><b>Research Task 1:</b></span><b> Dynamic spatial fields (Dr. <span class=spelle>Worboys</span>)<span class=GramE><span class=grame>&nbsp;&nbsp;</span></span></b><br> RT1 is concerned with characterizations of the qualitative aspects of the dynamic field and their relationship to the combinatorial map structure.</p> <ol style='margin-top:0in' start=1 type=1> <li class=MsoNormal style='margin-top:15.0pt;mso-margin-bottom-alt:auto; mso-list:l8 level1 lfo1;tab-stops:list .5in'><span style='mso-fareast-font-family: SimSun;mso-fareast-language:ZH-CN'>The taxonomy of spatial changes proposed in year 2 is refined and extended in year 3. In this ongoing work, we have focused on the development of <span class=GramE><span class=grame>an ontology</span></span> of spatial changes in OWL (web ontology language) using <span class=spelle>Protégé</span> 3. This ontology contains over 200 classes, including the class' terminological definition and the class' formalized restrictions. </span><span style='mso-fareast-font-family:"Times New Roman"'>(<a href="http://www.spatial.maine.edu/~dxiao/" target="_blank"><span class=spelle>Danqing</span> Xiao</a>,&nbsp; <a href="http://www.spatial.maine.edu/~nittel/" target="_blank">Silvia <span class=spelle>Nittel</span></a>, <a href="http://www.spatial.maine.edu/~worboys/" target="_blank">Mike <span class=spelle>Worboys</span></a>, Year 3)<br> [<a href="SensorProj/top.jpg" target="_blank">Classes of topological changes</a>] [<a href="SensorProj/metric.jpg" target="_blank">Classes of metric changes</a>] [<a href="SensorProj/spatialChange.zip">owl file download</a>] <o:p></o:p></span></li> <li class=MsoNormal style='margin-top:15.0pt;mso-margin-bottom-alt:auto; mso-list:l8 level1 lfo1;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'>We have worked on the formal modeling of continuous spatial phenomena for <span class=spelle>geosensor</span> networks. We thoroughly reviewed the former studies in the wireless sensor network field on boundary detection. Then we looked at how to track boundary deformation over time. (<a href="http://www.spatial.maine.edu/~dxiao/" target="_blank"><span class=spelle>Danqing</span> Xiao</a>, <a href="http://www.spatial.maine.edu/~nittel/" target="_blank">Silvia <span class=spelle>Nittel</span></a>, Year 3)<o:p></o:p></span></li> <li class=MsoNormal style='margin-top:15.0pt;mso-margin-bottom-alt:auto; mso-list:l8 level1 lfo1;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'>We have proposed the local tree model for representing spatial changes, based on which a complete set <span class=GramE><span class=grame>of<span style='mso-spacerun:yes'>  </span>types</span></span> of topological changes is specified.<span style='mso-spacerun:yes'>  </span>The local tree model provides a foundation for topological change detection using sensor networks. (<a href="mailto:jixiang.jiang@maine.edu"><span class=spelle>Jixiang</span> Jiang</a>, <a href="http://www.spatial.maine.edu/~worboys/" target="_blank">Mike <span class=spelle>Worboys</span></a>, Year 3) </span><span style='mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-GB'><span style='mso-spacerun:yes'> </span></span><span style='mso-fareast-font-family: "Times New Roman"'>[<a href="SensorProj/TR_1.pdf" target="_blank">Technical report</a>]<br> <strong>Publication</strong>: </span><span lang=EN-GB style='mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-GB'>&nbsp;J. Jiang, and M. </span><span class=spelle><span style='mso-fareast-font-family:"Times New Roman"'>Worboys</span></span><span lang=EN-GB style='mso-fareast-font-family:"Times New Roman";mso-ansi-language: EN-GB'>,<span class=GramE>&nbsp; <span class=grame>&quot;</span></span><span class=grame>Preliminaries </span>for topological change detection in sensor networks.&quot;In<em> Proc. of 3rd International conferences on Geosensor networks</em>, Oxford, England, 2009</span><span style='mso-fareast-font-family:"Times New Roman"'><o:p></o:p></span></li> <li class=MsoNormal style='margin-top:15.0pt;mso-margin-bottom-alt:auto; mso-list:l8 level1 lfo1;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'>We have set up a comprehensive taxonomy of all spatial changes. <span class=grame>An ontology</span> of qualitative continuant in dynamic spatial fields is under construction and implementation in Protégé. (<a href="http://www.spatial.maine.edu/~dxiao/" target="_blank"><span class=spelle>Danqing</span> Xiao</a>, <a href="http://www.spatial.maine.edu/~worboys/" target="_blank">Mike <span class=spelle>Worboys</span></a>, Year 2)<br> [<a href="SensorProj/frame.JPG" target="_blank">The taxonomy</a>]<o:p></o:p></span></li> <li class=MsoNormal style='margin-top:15.0pt;mso-margin-bottom-alt:auto; mso-list:l8 level1 lfo1;tab-stops:list .5in'><span lang=EN style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN'>A two-layer framework is proposed for analyzing spatial and temporal </span><span style='mso-fareast-font-family:"Times New Roman"'>entities for sensor networks. In the first layer,</span><span lang=EN style='mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN'> basic objects and events directly from collected sensor data are conceptualized. In the second layer, the data level entities are projected onto the information level to be expanded to global-level and semantic-rich entities. </span><span style='mso-fareast-font-family:"Times New Roman"'>&nbsp;(<a href="http://www.spatial.maine.edu/~dxiao/" target="_blank"><span class=spelle>Danqing</span> Xiao</a>, Year 2)<br> &nbsp; <o:p></o:p></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l8 level1 lfo1;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'>We have provided an analysis and classification of events associated with<span class=GramE><span class=grame>&nbsp; the</span></span> changes in topological structure of spatial areal objects as they evolve through time. The classification results provide a foundation for converting the qualitative spatial-temporal sensor readings into quantitative description. (<a href="mailto:jixiang.jiang@maine.edu"><span class=spelle>Jixiang</span> Jiang</a>, <a href="http://www.spatial.maine.edu/~worboys/" target="_blank">Mike <span class=spelle>Worboys</span></a>, Years 1,2) </span><span lang=EN-GB style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-GB'><span style='mso-spacerun:yes'> </span><br> <b>Publication</b>: J. Jiang, and M. </span><span class=spelle><span style='mso-fareast-font-family:"Times New Roman"'>Worboys</span></span><span lang=EN-GB style='mso-fareast-font-family:"Times New Roman";mso-ansi-language: EN-GB'>,&nbsp;<span class=grame>&quot;</span><a href="http://www.informaworld.com/smpp/content~content=a909197461~db=all~jumptype=rss">Event-based topology for dynamic planar areal objects</a>.&quot;<i>International Journal of Geographic Information Science</i>, 23(1):33-60, 2009.</span><span lang=EN-GB style='mso-fareast-font-family:"Times New Roman"'> </span><span style='mso-fareast-font-family:"Times New Roman"'><o:p></o:p></span></li> </ol> <p><span class=style11><b>Research Task 2/<span class=GramE>3 :</span></b></span><b> Combinatorial maps and their use in communication network topology (Dr. <span class=spelle>Worboys, </span>Dr. <span class=spelle>Nittel</span>)<span class=grame>&nbsp;</span></b><span class=grame>&nbsp;<o:p></o:p></span></p> <p>RT2/3 (combined) concerns the combinatorial map as the underlying topological structure of the sensor network, and its relationship to the sensor network, and responsiveness the dynamic field. RT3 focuses on algorithms to use combinatorial maps as communication network topology.</p> <ol style='margin-top:0in' start=1 type=1> <li class=MsoNormal style='margin-top:15.0pt;mso-margin-bottom-alt:auto; mso-list:l4 level1 lfo2;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'>Using <span class=grame>Delaunay</span> triangulation to set up the communication network topology, <span class=GramE>a new</span> <span style='color:black'>topological</span> change detection approaches is proposed. This approach collects the information required by the local tree model, and determines the type of change by the model. Communication cost is reduced using a boundary group based framework.<b> </b>(<a href="mailto:jixiang.jiang@maine.edu"><span class=spelle>Jixiang</span> Jiang</a>, <a href="http://www.spatial.maine.edu/~worboys/" target="_blank">Mike <span class=spelle>Worboys</span></a>, Years 2,3) </span><span style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-GB'><span style='mso-spacerun:yes'> </span></span><span style='mso-fareast-font-family: "Times New Roman"'><br> <b>Publication</b>:<b> </b></span><span lang=EN-GB style='mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-GB'>J. Jiang, and M. </span><span class=spelle><span style='mso-fareast-font-family:"Times New Roman"'>Worboys</span></span><span lang=EN-GB style='mso-fareast-font-family:"Times New Roman";mso-ansi-language: EN-GB'>, </span><span style='mso-fareast-font-family:"Times New Roman"'>&quot;<span style='color:black'>Detecting basic topological changes in sensor networks by local aggregation.</span>&quot;In <i style='mso-bidi-font-style:normal'>Proc. of ACMGIS 2008</i>, <st1:place u1:st="on"><st1:City u1:st="on">Orange County</st1:City>, <st1:State u1:st="on">CA</st1:State></st1:place>, 2008. [<a href="http://www.spatial.maine.edu/~jixiang.jiang/acmgisppt.pdf" target="_blank">presentation slides</a>] <o:p></o:p></span></li> <li class=MsoNormal style='margin-top:15.0pt;mso-margin-bottom-alt:auto; mso-list:l4 level1 lfo2;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'>The approach proposed in stage 1 <span style='color:black'>is</span> improved. A more flexible boundary group framework is proposed that enables reusing the time-invariant data during the monitoring. Communication cost is further reduced based on the new framework. .<b> </b>(<a href="mailto:jixiang.jiang@maine.edu"><span class=spelle>Jixiang</span> Jiang</a>, <a href="http://www.spatial.maine.edu/~worboys/" target="_blank">Mike <span class=spelle>Worboys</span></a>, <a href="http://www.spatial.maine.edu/~nittel/" target="_blank">Silvia <span class=spelle>Nittel</span></a>, Year 3) </span><span lang=EN-GB style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-GB'><span style='mso-spacerun:yes'> </span>[<a href="SensorProj/TR_2.pdf" target="_blank">Technical Report</a>]<br> <strong>Publication</strong>: J. Jiang, M.F. Worboys, and S. Nittel, &quot;Qualitative change detection using sensor networks based on connectivity information&quot;, Geoinformatica, (accepted, online version can be found at <a href="http://www.springerlink.com/content/p16871t361411n43/">http://www.springerlink.com/content/p16871t361411n43</a>/)</span><span style='mso-fareast-font-family:"Times New Roman"'><o:p></o:p></span></li> </ol> <ol style='margin-top:0in' start=3 type=1> <li class=MsoNormal style='margin-top:15.0pt;mso-margin-bottom-alt:auto; mso-list:l1 level1 lfo3;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'>Based on the combinatorial map model, a data structure is designed that enables each sensor to store its neighbor information efficiently. This data structure helps to save network energy. Simulation experiments agreed very well with the design.&nbsp; (<a href="mailto:cheng.zhong@umit.maine.edu">Cheng <span class=SpellE><span class=spelle>Zhong</span></span></a>, <a href="http://www.spatial.maine.edu/~worboys/" target="_blank">Mike <span class=spelle>Worboys</span></a>, Years 1,2)<br> <b>Publication:</b> C. <span class=SpellE><span class=spelle>Zhong</span></span>, and M. <span class=SpellE><span class=spelle>Worboys</span>,&quot;<a href="http://www.ieeexplore.ieee.org/xpl/freeabs_all.jsp?isnumber=4446298&amp;arnumber=4446339&amp;count=303&amp;index=40" target="_blank">Continuous</a></span><span class=MsoHyperlink> contour mapping in sensor networks</span></span></li> <span style='font-size:12.0pt;font-family:"Times New Roman","serif"; mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-US;mso-fareast-language: EN-US;mso-bidi-language:AR-SA'>.&quot;In <i>Proc. Of the 5th IEEE Consumer Communications and Networking Conference (CCNC)</i>, <st1:place u1:st="on"><st1:City u1:st="on">Las Vegas</st1:City>, <st1:State u1:st="on">NV</st1:State></st1:place>, 2008. [<a href="SensorProj/Tech/ccnc_presentation.pdf" target="_blank">presentation slides</a>]<br> &nbsp; <o:p></o:p></span> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l1 level1 lfo3;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'>As an extension of the work in 2, an energy-efficient technique, <span class=SpellE><span class=spelle>isovector</span></span> aggregation, is proposed. This technique reports and reconstructs the contour maps at the base station, which provides an efficient way to visualize and monitor the dynamic fields. (<a href="mailto:cheng.zhong@umit.maine.edu">Cheng <span class=SpellE><span class=spelle>Zhong</span></span></a>, <a href="http://www.spatial.maine.edu/~worboys/" target="_blank">Mike <span class=spelle>Worboys</span></a> Years 1,2)<br> <b>Publication: </b>C. <span class=SpellE><span class=spelle>Zhong</span></span>, and M. <span class=spelle>Worboys</span>, &quot;<a href="http://www.ecs.syr.edu/research/snw/presentations.html" target="_blank">Generating contours in a sensor network using <span class=SpellE><span class=spelle>isovector</span></span> aggregation</a>.&quot;In <i>Proc. Of the 5th IEEE Upstate NY Workshop on Communications, Sensors and Networking</i>, 2007. [<a href="http://www.ecs.syr.edu/research/snw/cheng.ppt" target="_blank">presentation slides</a>] [<a href="SensorProj/Tech/TP_isovector.pdf" target="_blank">technical report</a>] <o:p></o:p></span></li> <li class=MsoNormal style='margin-top:15.0pt;mso-margin-bottom-alt:auto; mso-list:l1 level1 lfo3;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'>We have modeled a <span style='color:black'>specific combinatorial map as the basic topological structure for the triangulation over the nodes of a sensor network. The model provides a framework for the detection of global high-level events based on local low-level  snapshot spatiotemporal data.</span> (<a href="http://www.spatial.maine.edu/~worboys/" target="_blank">Mike <span class=spelle>Worboys</span></a>,&nbsp; <a href="http://www.duckham.org/" target="_blank">Matt <span class=spelle>Duckham</span></a>, Year 1)<br> <b>Publication</b>: M.<span class=GramE><span class=grame>&nbsp; </span><span class=spelle>Worboys</span></span>,&nbsp; and M. <span class=SpellE><span class=spelle>Duckham</span>,&quot;<a href="http://www.spatial.maine.edu/~worboys/mywebpapers/ijgis%202006.pdf" target="_blank">Monitoring</a></span><span class=MsoHyperlink> qualitative spatial change for </span><span class=spelle><u><span style='color:blue'>geosensor</span></u></span><span class=MsoHyperlink> networks</span></span></li> <span style='font-size:12.0pt;font-family:"Times New Roman","serif"; mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-US;mso-fareast-language: EN-US;mso-bidi-language:AR-SA'>.&quot;<i>International Journal of Geographic Information Science</i>, 20(10), 1087-1108, 2006. <o:p></o:p></span> </ol> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=style11><b><a href="http://www.spatial.maine.edu/~worboys/mywebpapers/ijgis%202006.pdf" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline: none'>Research Task 4: </span><span style='color:windowtext;text-decoration: none;text-underline:none'>Monitoring the field based on qualitative information (Dr. </span><span class=spelle><span style='color:windowtext;text-decoration: none;text-underline:none'>Nittel</span></span><span class=GramE><span style='color:windowtext;text-decoration:none;text-underline:none'>)</span></span><span style='color:windowtext;text-decoration:none;text-underline:none'><br> </span><span style='color:windowtext;font-weight:normal;text-decoration:none; text-underline:none'>RT4 relates to real-world experiments with qualitative properties of continuous phenomena.</span></a></b></span></p> <ol start=1 type=1> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l6 level1 lfo4;tab-stops:list .5in'><span class=style11><span style='mso-bidi-font-weight:bold'><a href="http://www.spatial.maine.edu/~worboys/mywebpapers/ijgis%202006.pdf" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>A simul</span><span style='color:windowtext; mso-bidi-font-weight:normal;text-decoration:none;text-underline:none'>a</span><span style='color:windowtext;text-decoration:none;text-underline:none'>tion environment is setup based on Prowler, a <span class=SpellE>Matlab</span>-based network simulator. Both topological change detection approaches proposed in RT2-3 are implemented and tested. Sample videos that show the detection procedure of both approaches can be downloaded at our project website.(</span><span style='color:windowtext;mso-bidi-font-weight:normal;text-decoration:none; text-underline:none'><span style='mso-field-code:" HYPERLINK \0022mailto\:jixiang\.jiang\@maine\.edu\0022 "'><span class=spelle><u><span style='color:blue'>Jixiang</span></u></span><u><span style='color:blue'> Jiang</span></u></span></span><span style='color:windowtext; mso-bidi-font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;mso-bidi-font-weight:normal;text-decoration:none; text-underline:none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.spatial\.maine\.edu\/~worboys\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Mike </span></u><span class=spelle><u><span style='color:blue'>Worboys</span></u></span></span></span><span style='color:windowtext;mso-bidi-font-weight:normal;text-decoration:none; text-underline:none'>, </span><span style='color:windowtext;mso-bidi-font-weight: normal;text-decoration:none;text-underline:none'><span style='mso-field-code: " HYPERLINK \0022http\:\/\/www\.spatial\.maine\.edu\/~nittel\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Silvia </span></u><span class=spelle><u><span style='color:blue'>Nittel</span></u></span></span></span><span style='color:windowtext;mso-bidi-font-weight:normal;text-decoration:none; text-underline:none'>, Year 3</span><span style='color:windowtext; text-decoration:none;text-underline:none'>)</span><span style='color:windowtext; text-decoration:none;text-underline:none'><br> </span><span style='color:windowtext;mso-bidi-font-weight:normal; text-decoration:none;text-underline:none'>[<span style='mso-field-code: " HYPERLINK \0022SensorProj\/LA\.zip\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Sample Video 1 - local aggregation approach</span></u></span>] [<span style='mso-field-code:" HYPERLINK \0022SensorProj\/BR\.zip\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Sample Video 1 - local boundary reporting approach</span></u></span>] </span><span style='color:windowtext;mso-bidi-font-weight:normal; text-decoration:none;text-underline:none'><br> -- In the video, red nodes represent nodes participated in the reporting, star nodes represent the group heads, and edges between the nodes show the routing trees constructed in the groups</span><span style='color:windowtext; text-decoration:none;text-underline:none'><o:p></o:p></span></a></span></span></li> <li class=MsoNormal style='margin-top:15.0pt;mso-margin-bottom-alt:auto; mso-list:l6 level1 lfo4;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="SensorProj/BR.zip" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>We have defined topological change and present in-network algorithms to detect such changes. An&nbsp;adaptive sensor network management strategy is applied, and energy efficiency is achieved by dynamic sensor activation and deactivation.&nbsp;&nbsp; ( <span style='mso-field-code:" HYPERLINK \0022mailto\:cfarah\@spatial\.maine\.edu\0022 "'><u><span style='color:blue'>Christopher Farah</span></u></span>, <span style='mso-field-code:" HYPERLINK \0022mailto\:cheng\.zhong\@umit\.maine\.edu\0022 "'><u><span style='color:blue'>Cheng <span class=SpellE><span class=spelle>Zhong</span></span></span></u></span>, <span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.spatial\.maine\.edu\/~worboys\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Mike <span class=spelle>Worboys</span></span></u></span>, <span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.spatial\.maine\.edu\/~nittel\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Silvia <span class=spelle>Nittel</span></span></u></span>, Year 2)<br> <b>Publication: </b>C. Farah, C. <span class=SpellE><span class=spelle>Zhong</span></span>, M. <span class=spelle>Worboys</span>, and <st1:place u1:st="on">S. <span class=spelle>Nittel</span></st1:place>, <span class=grame>&quot;Detecting</span> topological change using a wireless sensor network.&quot;&nbsp;<i>Proceedings of Geographic Information Science</i> (<span class=spelle><i>GIScience</i></span><i> 2008</i>), Springer LNCS 5266, 55-69 <o:p></o:p></span></a></span></li> <li class=MsoNormal style='margin-top:15.0pt;mso-margin-bottom-alt:auto; mso-list:l6 level1 lfo4;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~nittel/" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>Dr. <span class=spelle>Nittel</span> has published a paper with Dr. Young J. Young with regard to processing real-world sensor data collected over a campus area in <st1:place u1:st="on"><st1:country-region u1:st="on">Korea</st1:country-region></st1:place>, and to represent the sensor data as layers for further processing and spatial queries.&nbsp; (Year 2)<b><br> Publication: </b>Y. J. Jung, and S. <span class=spelle>Nittel</span>, 2008, &quot;<span class=spelle>Geosensor</span> Data abstraction for environmental monitoring application.&quot;In <i>Proceedings of Geographic Information Science</i> (<span class=spelle><i>GIScience</i></span><i> 2008</i>), Springer LNCS 5266, 168-180. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='margin-top:15.0pt;mso-margin-bottom-alt:auto; mso-list:l6 level1 lfo4;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~nittel/" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>Dr Nittel has published a paper with <span class=SpellE>Guang</span> Jin on using a SNAKE-based model to incrementally monitor the boundary deformation of continuous phenomena using an alternative approach based on the phenomenon s boundary geometry. <br> <b style='mso-bidi-font-weight:normal'>Publication</b>: G. Jin and S. Nittel,  </span><span style='mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast;color:windowtext;text-decoration: none;text-underline:none'>Supporting Spatio-Temporal Queries in Wireless Sensor Networks by Tracking Deformable 2D Objects , </span><span style='color:windowtext;text-decoration:none;text-underline:none'>In <i>Proc. of ACMGIS 2008</i>, Orange County, CA, 2008</span><span style='mso-fareast-font-family: "Times New Roman";mso-fareast-theme-font:minor-fareast;color:windowtext; text-decoration:none;text-underline:none'>.</span><span style='color:windowtext; text-decoration:none;text-underline:none'><o:p></o:p></span></a></span></li> <li class=MsoNormal style='margin-top:15.0pt;mso-margin-bottom-alt:auto; mso-list:l6 level1 lfo4;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~nittel/" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>Dr. <span class=spelle>Nittel</span> participated in the spring 2008 IGERT <span class=SpellE><span class=spelle>testbed</span></span> class, which constructed a wireless sensor network to measure the light field around tomato plants in a commercial greenhouse in <st1:place u1:st="on"><st1:City u1:st="on">Madison</st1:City>, <st1:State u1:st="on">ME.</st1:State></st1:place> She assisted the students in their field trip to set-up the network, and <span class=GramE>test</span> the sensor data collection.&nbsp; (Year 2)<o:p></o:p></span></a></span></li> </ol> <p><strong><a href="http://www.spatial.maine.edu/~nittel/" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>Other publications</span></a></strong></p> <ol start=1 type=1> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l12 level1 lfo5;tab-stops:list .5in'><a href="http://www.spatial.maine.edu/~nittel/" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>D. Xiao,  Modeling and monitoring non-topological spatial changes of continuous phenomena in geosensor networks , <i style='mso-bidi-font-style:normal'>Master Thesis</i>, University of Maine, May 2010. </span><span style='mso-fareast-font-family: "Times New Roman";color:windowtext;text-decoration:none;text-underline: none'><o:p></o:p></span></a></li> </ol> <p style='margin-top:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in; margin-bottom:.0001pt;text-indent:-.25in;mso-list:l12 level1 lfo5;tab-stops: list .5in'><span style='mso-fareast-font-family:"Times New Roman"'><a href="http://www.spatial.maine.edu/~nittel/" target="_blank"><![if !supportLists]><span style='color:windowtext;text-decoration:none;text-underline:none'><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><![endif]><span style='color:windowtext;text-decoration: none;text-underline:none'>S. Nittel</span><span style='mso-fareast-font-family: "Times New Roman";mso-fareast-theme-font:minor-fareast;color:windowtext; text-decoration:none;text-underline:none'>,  </span><span style='color:windowtext; text-decoration:none;text-underline:none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.spatial\.maine\.edu\/%7Enittel\/papers\/GSN_survey_nittel_SENSORS-2009\.pdf\0022 "'><u><span style='color:blue'>A Survey of Geosensor Networks: Advances in Dynamic Environmental Monitoring</span></u></span> ,&nbsp;<em>Sensors</em><span class=idnt> <span style='mso-bidi-font-weight:bold'>2009</span>, </span><em>9</em><span class=idnt>(7), 5664-5678; doi<span class=GramE>:</span><span style='mso-field-code: " HYPERLINK \0022http\:\/\/dx\.doi\.org\/10\.3390\/s90705664\0022 "'><u><span style='color:blue'>10.3390/s90705664</span></u></span></span>, <span class=pubdates>15 July 2009.</span> </span><span style='mso-fareast-font-family: "Times New Roman";mso-fareast-theme-font:minor-fareast;color:windowtext; text-decoration:none;text-underline:none'><o:p></o:p></span></a></span></p> <ol start=3 type=1> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l12 level1 lfo5;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://dx.doi.org/10.3390/s90705664"><span style='color:windowtext;text-decoration:none;text-underline:none'>J. Jiang, &quot;Specifying and detecting topological changes to an <span class=SpellE>areal</span> object.<span class=GramE>&quot;,</span> <em>Ph.D. dissertation</em>, University of Maine, 2009.<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l12 level1 lfo5;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://dx.doi.org/10.3390/s90705664"><span style='color:windowtext;text-decoration:none;text-underline:none'>C. <span class=SpellE><span class=spelle>Zhong</span></span>, &quot;<span class=GramE><span style='mso-bidi-font-weight:bold'>Generating<span style='mso-spacerun:yes'>  </span>contour</span></span><span style='mso-bidi-font-weight:bold'> maps for dynamic fields monitored by sensor networks.</span> &quot;, <i style='mso-bidi-font-style:normal'>Master thesis</i>, <st1:place u1:st="on"><st1:PlaceType u1:st="on">University</st1:PlaceType> of <st1:PlaceName u1:st="on">Maine</st1:PlaceName></st1:place>, 2008. <span style='mso-bidi-font-weight:bold'><o:p></o:p></span></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l12 level1 lfo5;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://dx.doi.org/10.3390/s90705664"><span style='color:windowtext;text-decoration:none;text-underline:none'>J. Stell and M. Worboys, &quot;A theory of change for attributed spatial entities.&quot;In <i>Proceedings of Geographic Information Science</i> (<span class=spelle><i>GIScience</i></span><i> 2008</i>), Springer LNCS 5266, 308-319.<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l12 level1 lfo5;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://dx.doi.org/10.3390/s90705664"><span style='color:windowtext;text-decoration:none;text-underline:none'>S. <span class=spelle>Nittel</span>, A. <span class=SpellE><span class=spelle>Labrinidis</span></span>, and A. <span class=SpellE><span class=spelle>Stefanidis</span></span>, &quot;Advances in <span class=spelle>geosensor</span> networks.&quot;<i>Springer LNCS 4540</i>, <span class=GramE>2008<span style='mso-spacerun:yes'>  </span>(</span>Book). <span style='mso-bidi-font-weight:bold'><o:p></o:p></span></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l12 level1 lfo5;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://dx.doi.org/10.3390/s90705664"><span style='color:windowtext;text-decoration:none;text-underline:none'>A. <span class=SpellE><span class=spelle>Klippel</span></span></span><span lang=EN-GB style='color:windowtext;mso-ansi-language:EN-GB;text-decoration: none;text-underline:none'>, M. <span class=spelle>Worboys</span>, and M. <span class=spelle>Duckham</span>, &quot;</span><span style='color:windowtext; text-decoration:none;text-underline:none'>Identifying factors of geographic event <span class=SpellE><span class=spelle>conceptualisation</span></span></span><span lang=EN-GB style='color:windowtext;mso-ansi-language:EN-GB;text-decoration: none;text-underline:none'>.&quot;<i>International Journal of Geographic Information Science</i>, 22(2), 183-204.</span><span lang=EN-GB style='color:windowtext;text-decoration:none;text-underline:none'> </span><span style='color:windowtext;text-decoration:none;text-underline:none'><o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l12 level1 lfo5;tab-stops:list .5in'><span lang=EN-GB style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-GB'><a href="http://dx.doi.org/10.3390/s90705664"><span style='color:windowtext; text-decoration:none;text-underline:none'>M. <span class=spelle>Duckham</span>,<span class=GramE>&nbsp; M</span>. <span class=spelle>Worboys</span>, and A. Galton,&nbsp;&quot;Efficient generation of simple polygons for characterizing the shape of a set of points in the plane</span><span lang=EN-US style='color:windowtext;mso-ansi-language:EN-US;text-decoration: none;text-underline:none'>.&quot;</span><i><span style='color:windowtext; text-decoration:none;text-underline:none'>Pattern Recognition</span></i><span style='color:windowtext;text-decoration:none;text-underline:none'>, 41(10), 3224-3236, 2008.</span><span lang=EN-US style='color:windowtext; mso-ansi-language:EN-US;text-decoration:none;text-underline:none'><o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l12 level1 lfo5;tab-stops:list .5in'><span lang=EN-GB style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-GB'><a href="http://dx.doi.org/10.3390/s90705664"><span style='color:windowtext; text-decoration:none;text-underline:none'>A. <span class=SpellE><span class=spelle>Klippel</span></span>, M. <span class=spelle>Worboys</span>, and M. <span class=spelle>Duckham</span>,&nbsp;&quot;Conceptual neighbourhood blindness  on the cognitive adequacy of gradual topological changes.&quot;<i>Conference on Spatial Cognition, Workshop on Talking about and perceiving moving objects: exploring the bridge between natural language, perception and formal <span class=spelle>ontologies</span> of space.</i> <st1:place u1:st="on"><st1:City u1:st="on">Bremen</st1:City>, <st1:country-region u1:st="on">Germany</st1:country-region></st1:place>, 2006.</span><span style='color:windowtext;mso-ansi-language:EN-US; text-decoration:none;text-underline:none'> </span><span lang=EN-US style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none; text-underline:none'><o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l12 level1 lfo5;tab-stops:list .5in'><span lang=EN-GB style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-GB'><a href="http://dx.doi.org/10.3390/s90705664"><span style='color:windowtext; text-decoration:none;text-underline:none'>M. <span class=spelle>Worboys</span>, and M. <span class=spelle>Duckham</span>,<span class=GramE>&nbsp; &quot;</span>Formalizing mobility in dynamic location-aware sensor networks.&quot;(<span class=GramE>short</span> paper). <i>International Workshop on Mobile Location-Aware Sensor Networks</i>, <st1:place u1:st="on"><st1:City u1:st="on">Nara</st1:City>, <st1:country-region u1:st="on">Japan</st1:country-region></st1:place>, IEEE Publications, 2006.</span><span style='color:windowtext;mso-ansi-language: EN-US;text-decoration:none;text-underline:none'> </span><span lang=EN-US style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none; text-underline:none'><o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l12 level1 lfo5;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://dx.doi.org/10.3390/s90705664"><span style='color:windowtext;text-decoration:none;text-underline:none'>J. Jiang</span><span lang=EN-GB style='color:windowtext;mso-ansi-language:EN-GB;text-decoration: none;text-underline:none'>, and&nbsp;M. <span class=spelle>Worboys</span>,<span class=GramE>&nbsp; &quot;</span></span><span style='color:windowtext; text-decoration:none;text-underline:none'>Specifying</span><span style='color:windowtext;mso-ansi-language:EN-GB;text-decoration:none; text-underline:none'> <span lang=EN-GB>events by changes in topological properties (Extended Abstract).&quot;&nbsp; <span class=GramE>presented</span> at <i>Geographic Information Science-Fourth International Conference, <span class=spelle>GIScience</span> 2006,</i> <st1:place u1:st="on"><st1:country-region u1:st="on"><i>Germany</i></st1:country-region></st1:place>, 2006.</span></span><span lang=EN-GB style='color:windowtext;text-decoration: none;text-underline:none'> </span><span style='color:windowtext; text-decoration:none;text-underline:none'><o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l12 level1 lfo5;tab-stops:list .5in'><span lang=EN-GB style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-GB'><a href="http://dx.doi.org/10.3390/s90705664"><span style='color:windowtext; text-decoration:none;text-underline:none'>C. Farah, and&nbsp; M. <span class=spelle>Worboys</span>, &quot;</span><span lang=EN-US style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none; text-underline:none'>Specifying</span><span style='color:windowtext; text-decoration:none;text-underline:none'> qualitative analysis of a scalar field using a&nbsp; wireless sensor network &nbsp;(Extended Abstract)&quot;&nbsp; presented at <i>Geographic Information Science-Fourth International Conference, <span class=spelle>GIScience</span> 2006,</i> <i>Germany</i>, 2006.</span><span lang=EN-US style='color:windowtext; mso-ansi-language:EN-US;text-decoration:none;text-underline:none'><o:p></o:p></span></a></span></li> </ol> <p class=style4><a href="http://dx.doi.org/10.3390/s90705664"><span style='color:windowtext;text-decoration:none;text-underline:none'><span style='mso-field-code:" HYPERLINK \0022\0022 \\l \0022top\0022 "'><u><span style='color:blue'>[<span class=GramE>back</span> to top]</span></u></span></span></a></p> <div class=MsoNormal align=center style='text-align:center'><span style='mso-fareast-font-family:"Times New Roman"'><a href="#top"><span style='color:windowtext;text-decoration:none;text-underline:none'> <hr size=2 width="100%" align=center> </span></a></span></div> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a name=Collaborations></a><a href="#top"><span style='mso-bookmark:Collaborations'><b><span style='font-size:18.0pt;color:windowtext;text-decoration:none;text-underline: none'>Collaborations</span></b></span><span style='mso-bookmark:Collaborations'></span></a></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='mso-fareast-font-family:SimSun;mso-fareast-language:ZH-CN'><a href="#top"><span style='color:windowtext;text-decoration:none;text-underline:none'>(Jan. 2009 and July 2008) Dr. John Stell from <st1:place u1:st="on"><st1:City u1:st="on">University of Leeds</st1:City>, <st1:country-region u1:st="on">UK</st1:country-region></st1:place> visited our department twice</span><span style='mso-fareast-font-family:"Times New Roman"; color:windowtext;mso-fareast-language:EN-US;text-decoration:none;text-underline: none'>. </span><span style='mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast;color:windowtext;mso-fareast-language: EN-US;text-decoration:none;text-underline:none'>During the visits, Dr. Stell worked with PI Dr. Worboys on the development of theories on qualitative spatial changes, as well as the analysis of granularity issues related to these changes.</span></a></span></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a href="#top"><span style='color:windowtext;text-decoration:none;text-underline: none'>(Nov. 2008)</span><span style='mso-fareast-font-family:SimSun;color:windowtext; mso-fareast-language:ZH-CN;text-decoration:none;text-underline:none'> Dr. Matt Duckham from <st1:place u1:st="on"><st1:City u1:st="on">University of Melbourne</st1:City>, <st1:country-region u1:st="on">Australia</st1:country-region></st1:place>, visited our department. During his visit, Dr. Duckham presented and discussed with the members of sensor network group in the area of decentralized spatial-temporal computing, and cooperated with us to explore the new area of sensor network-based 3D environmental phenomena monitoring.</span></a></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a href="#top"><span style='color:windowtext;text-decoration:none;text-underline: none'>(Aug./20/2008 - Oct<span class=GramE>./</span>20/ 2008)&nbsp; Dr. <span class=spelle>Nittel</span> visited <span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.comlab\.ox\.ac\.uk\/niki\.trigoni\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Dr. <span class=SpellE><span class=spelle>Niki</span></span> <span class=spelle>Trigoni</span> </span></u></span>at the <span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.comlab\.ox\.ac\.uk\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Computational Lab</span></u></span>, <span style='mso-field-code: " HYPERLINK \0022http\:\/\/www\.ox\.ac\.uk\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>University of Oxford</span></u></span>, from<span class=GramE><span class=grame>&nbsp; for</span></span> collaboration during her sabbatical. The focus of the collaboration is the usage of mobile data collections sinks for fixed sensor networks.<br> <br> (Jan. 2007)&nbsp; Dr. <span class=spelle>Worboys</span> visited the <span class=SpellE><span class=spelle>the</span></span> <span style='mso-field-code: " HYPERLINK \0022http\:\/\/www\.geom\.unimelb\.edu\.au\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Department of <span class=spelle>Geomatics</span></span></u></span>, <span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.unimelb\.edu\.au\/\0022 \\t \0022_blank\0022 "'><u><span style='color:#0000CC'>University of Melbourne</span></u></span>, <st1:country-region u1:st="on">Australia</st1:country-region>&nbsp;to work with collaborator <span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.duckham\.org\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Dr. Matt <span class=spelle>Duckham</span></span></u></span>.</span></a></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a href="http://www.duckham.org/" target="_blank"><span style='color:windowtext; text-decoration:none;text-underline:none'>(Jan./01/2008 - Mar./24/2008)&nbsp; Dr. <span class=spelle>Worboys</span> visited the <span style='mso-field-code: " HYPERLINK \0022http\:\/\/www\.comp\.leeds\.ac\.uk\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>School of Computing</span></u></span>, <span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.leeds\.ac\.uk\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>University of Leeds</span></u></span>, <st1:country-region u1:st="on">UK</st1:country-region> to work with collaborators <span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.comp\.leeds\.ac\.uk\/jgs\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Dr. John <span class=spelle>Stell</span></span></u></span> and </span><span style='font-family:"Times","serif";color:windowtext; text-decoration:none;text-underline:none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.comp\.leeds\.ac\.uk\/agc\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Dr. Tony Cohn</span></u></span></span><span style='color:windowtext;text-decoration:none;text-underline:none'>.</span></a></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a href="http://www.comp.leeds.ac.uk/agc/" target="_blank"><span style='color: windowtext;text-decoration:none;text-underline:none'>(Sept. 2007 - May 2008) Periodic online meetings were hold between this project group at <st1:PlaceType u1:st="on">University</st1:PlaceType> of <st1:PlaceName u1:st="on">Maine</st1:PlaceName> and the <span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.geosensor\.net\/dsc\/\0022 \\t \0022_blank\0022 "'><u><span style='color:#0000CC'>Distributed Spatial Computing group </span></u></span>at<span class=GramE><span class=grame>&nbsp; <st1:place u1:st="on"><st1:City u1:st="on">University</span></span><span class=grame> of Melbourne</st1:City>, <st1:country-region u1:st="on">Australia</st1:country-region></st1:place>. </span><br> <b>Presentations from University of Melbourne:</b><br> Sept./13/2007, Muhammad <span class=SpellE><span class=spelle>Jafar</span></span> <span class=SpellE><span class=spelle>Sadeq</span></span>, <span style='mso-field-code:" HYPERLINK \0022SensorProj\/Joint\/Au1\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Distributed detection of spatiotemporal change of regions using boundary state </span></u></span><br> Oct./22/2007, Matt <span class=spelle>Duckham</span>, <span style='mso-field-code: " HYPERLINK \0022SensorProj\/Joint\/Au2\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Distributed environmental simulation and feedback in robust <span class=spelle>geosensor</span> networks</span></u></span><br> Dec./03/2007, Patrick <span class=SpellE><span class=spelle>Laube</span></span>, <span style='mso-field-code:" HYPERLINK \0022SensorProj\/Joint\/Au3\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>FLAGS  flocking amongst geo-sensors</span></u></span><br> Apr./23/2008, Muhammad <span class=SpellE><span class=spelle>Jafar</span></span> <span class=SpellE><span class=spelle>Sadeq</span></span>, <span style='mso-field-code:" HYPERLINK \0022SensorProj\/Joint\/Au4\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Effect of neighborhood on in-network processing</span></u></span><br> <br> <b>Presentations from University of Maine:</b><br> Sept./13/2007, Cheng <span class=SpellE><span class=spelle>Zhong</span></span>, <span style='mso-field-code:" HYPERLINK \0022SensorProj\/Joint\/ME1\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Detect region changes locally in sensor networks</span></u></span></span><span style='color:red;text-decoration:none;text-underline:none'><br> </span><span style='color:windowtext;text-decoration:none;text-underline:none'>Oct./22/2007, Christopher Farah, <span style='mso-field-code:" HYPERLINK \0022SensorProj\/Joint\/Me2\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Making use of routing protocols to detect events in wireless sensor networks (<span class=spelle>WSNs</span>)</span></u></span><br> Dec./03/2007, <span class=spelle>Jixiang</span> Jiang, <span style='mso-field-code: " HYPERLINK \0022SensorProj\/Joint\/Me3\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Study on classifications of topological changes</span></u></span><br> Apr./09/2008, Mike <span class=spelle>Worboys</span>, <span style='mso-field-code: " HYPERLINK \0022SensorProj\/Joint\/ME4\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Some more thoughts on change</span></u></span><br> May/26/2008, <span class=spelle>Jixiang</span> Jiang, <span style='mso-field-code: " HYPERLINK \0022SensorProj\/Joint\/ME5\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Detecting topological changes in sensor networks by local aggregation</span></u></span><br style='mso-special-character:line-break'> <![if !supportLineBreakNewLine]><br style='mso-special-character:line-break'> <![endif]></span></a></p> <p class=style4><a href="SensorProj/Joint/ME5.pdf" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'><span style='mso-field-code:" HYPERLINK \0022\0022 \\l \0022top\0022 "'><u><span style='color:blue'>[<span class=GramE>back</span> to top]</span></u></span></span></a></p> <div class=MsoNormal align=center style='text-align:center'><span style='mso-fareast-font-family:"Times New Roman"'><a href="#top"><span style='color:windowtext;text-decoration:none;text-underline:none'> <hr size=2 width="100%" align=center> </span></a></span></div> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a name=broadimpacts></a><a href="#top"><span style='mso-bookmark:broadimpacts'><b><span style='font-size:18.0pt;color:windowtext;text-decoration:none;text-underline: none'>Broad impacts</span></b></span><span style='mso-bookmark:broadimpacts'></span></a></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=style11><b><a href="#top"><span style='color:windowtext;text-decoration: none;text-underline:none'>Sensors and Emergency Management<br> </span><span class=GramE><span style='color:windowtext;font-weight:normal; mso-bidi-font-weight:bold;text-decoration:none;text-underline:none'>The</span></span><span style='color:windowtext;font-weight:normal;mso-bidi-font-weight:bold; text-decoration:none;text-underline:none'> investigators led the project <span class=SpellE>SenseME</span>, that applied sensor technology to monitoring critical infrastructure and tracking logistical assets in the case of disasters and emergencies. This project is supported by the Maine National Guard and Maine Emergency Management Agency, with industry support from Global Relief Technologies.<o:p></o:p></span></a></b></span></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=style11><b><a href="#top"><span style='color:windowtext;text-decoration: none;text-underline:none'>IGERT</span><span style='color:windowtext;text-decoration: none;text-underline:none'>&nbsp;</span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'><br> The project is closely integrated with a new NSF IGERT Program on </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.umaine\.edu\/sensorigert\/index\.php\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Sensor Science, Engineering, and Informatics (SSEI)</span></u></span></span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'>. Both PIs Dr. </span><span class=spelle><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>Worboys</span></span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'> and Dr. </span><span class=spelle><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>Nittel</span></span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'> are Executive Committees of the program, and both are the panelists of the informatics panel, SSEI IGERT summer institute workshop in 2008 and 2009, respectively.</span></a></b></span></p> <p class=reference><span class=style11><b><a href="http://www.umaine.edu/sensorigert/index.php" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>Conferences and workshops organized</span><span style='color:windowtext;font-weight:normal; text-decoration:none;text-underline:none'><br> Dr. </span><span class=spelle><span style='color:windowtext;font-weight:normal; text-decoration:none;text-underline:none'>Nittel</span></span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'> serves as the Program Committee and General Co-Chair of the 1st International Workshop on </span><span style='color:windowtext;font-weight: normal;text-decoration:none;text-underline:none'><span style='mso-field-code: " HYPERLINK \0022http\:\/\/www-users\.cs\.umn\.edu\/~cchow\/palms07\/\0022 "'><u><span style='color:blue'>Privacy-Aware Location-Based Mobile Services</span></u></span></span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'> (PALMS'07), in conjunction with Mobile Data Management,&nbsp; Mannheim, Germany, May 2007. She also serves as a Steering Committee of the </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.comlab\.ox\.ac\.uk\/geosensornetworks\/\0022 "'><u><span style='color:blue'>3rd<span class=GramE>&nbsp; Conference</span> on Geosensor Networks </span></u></span></span><span style='color:windowtext;font-weight: normal;text-decoration:none;text-underline:none'>(GSN3.0), Oxford, UK, July 2009.</span></a></b></span></p> <p class=reference><span class=style11><b><a href="http://www.comlab.ox.ac.uk/geosensornetworks/"><span style='color:windowtext; text-decoration:none;text-underline:none'>Academic service</span><span style='color:windowtext;text-decoration:none;text-underline:none'><br> </span><span style='color:windowtext;font-weight:normal;text-decoration:none; text-underline:none'>Dr. </span><span class=spelle><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>Worboys</span></span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'> is a Program Committee Member for the following conferences and workshops:&nbsp;<br> </span><span style='color:windowtext;font-weight:normal;text-decoration:none; text-underline:none'>ACM Sigspatial 2010, </span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/isgis\.lsgi\.polyu\.edu\.hk\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>ISGIS 2010</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/sstd09\.cs\.aau\.dk\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>SSTD 2009</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.comlab\.ox\.ac\.uk\/geosensornetworks\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>GSN 2009</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/acmgis09\.cs\.umn\.edu\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>ACM-GIS 2009</span></u></span></span><span style='color: windowtext;font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.ikg\.uni-hannover\.de\/agile\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>AGILE 2009</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/sigappfr\.acm\.org\/MEDES\/09\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>MEDES 2009</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/geosco\.org\/geos2009\/\0022 \\t \0022_blank\0022 "'><span class=SpellE><u><span style='color:blue'>GeoS</span></u></span><u><span style='color:blue'> 2009</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>,&nbsp; </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.cosit\.info\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>COSIT 2009</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.irit\.fr\/smps08\/workshop\/FSI\.html\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>SMPS 2008</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/regard\.crg\.ulaval\.ca\/2008\/index\.php?id=1\0022 "'><u><span style='color:blue'>AR2008</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/acmgis08\.cs\.umn\.edu\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>ACM-GIS 2008</span></u></span></span><span style='color: windowtext;font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.giscience\.org\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>GIScience 2008</span></u></span></span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration: none;text-underline:none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.gi-tage\.de\/archive\/2008\/\0022 \\t \0022_blank\0022 "'><span class=SpellE><u><span style='color:blue'>GIDays</span></u></span><u><span style='color:blue'> 2008</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.geosco\.org\/geos2007\/\0022 \\t \0022_blank\0022 "'><span class=SpellE><u><span style='color:blue'>GeoS</span></u></span><u><span style='color:blue'> 2007</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.geosensor\.net\/dgsum\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>DG/SUM 2007</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.ewh\.ieee\.org\/tc\/its\/itsc2007\/index\.html\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>ITSC 2007</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/468041\.g\.portal\.aau\.dk\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>AGILE 2007</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, COSIT 2007, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.cise\.ufl\.edu\/dept\/acmgis2007\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>ACM-GIS 2007</span></u></span></span><span style='color: windowtext;font-weight:normal;text-decoration:none;text-underline:none'>, </span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.gi-tage\.de\/archive\/2007\/index\.php\0022 \\t \0022_blank\0022 "'><span class=SpellE><u><span style='color:blue'>GIDays</span></u></span><u><span style='color:blue'> 2007</span></u></span></span><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'><br> Dr. Worboys serves as the editor-in-chief for the Journal of Spatial Information Science since 2009. He is also serves on the other editorial boards, including </span><em><span style='color:windowtext;font-weight:normal; text-decoration:none;text-underline:none'>Oxford University Press Spatial Information Science Series</span></em><span style='color:windowtext;font-weight: normal;text-decoration:none;text-underline:none'>, </span><i style='mso-bidi-font-style: normal'><span style='color:windowtext;font-weight:normal;text-decoration:none; text-underline:none'>I</span></i><em><span style='color:windowtext;font-weight: normal;text-decoration:none;text-underline:none'>nternational Journal of Geographical Information Science</span></em><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><em><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'>Transactions in GIS</span></em><span style='color:windowtext;font-weight: normal;text-decoration:none;text-underline:none'>, </span><em><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'>Geoinformatica</span></em><span style='color:windowtext;font-weight:normal; text-decoration:none;text-underline:none'>, </span><em><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>Computers in Environmental and Urban Systems</span></em><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, </span><em><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'>Cartography and Geographic Information Science</span></em><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'>, </span><em><span style='color:windowtext;font-weight:normal;text-decoration: none;text-underline:none'>USISA</span></em><span style='color:windowtext; font-weight:normal;text-decoration:none;text-underline:none'>, and </span><em><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'>Geography Compass</span></em><span style='color:windowtext;font-weight: normal;text-decoration:none;text-underline:none'>.</span></a></b></span></p> <p class=reference><a href="http://www.gi-tage.de/archive/2007/index.php" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline: none'>Dr. <span class=spelle>Nittel</span> is a Program Committee Member for the following conferences and workshops:&nbsp;<br> SSDBM 2010, <span style='mso-field-code:" HYPERLINK \0022http\:\/\/dmsn09\.ethz\.ch\/index\.html\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>DMSN 2009</span></u></span>, <span style='mso-field-code: " HYPERLINK \0022http\:\/\/acmgis09\.cs\.umn\.edu\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>ACM-GIS 2009</span></u></span>, <span style='mso-field-code: " HYPERLINK \0022http\:\/\/vldb2009\.org\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>VLDB 2009</span></u></span>, <span style='mso-field-code: " HYPERLINK \0022http\:\/\/si\.deis\.unical\.it\/~cuzzocrea\/DKSS2009\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>DKSS 2009</span></u></span>, <span style='mso-field-code: " HYPERLINK \0022http\:\/\/adslab\.cs\.nctu\.edu\.tw\/mdm2009\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>MDM 2009</span></u></span>, <span style='mso-field-code: " HYPERLINK \0022http\:\/\/acmgis08\.cs\.umn\.edu\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>ACM-GIS 2008</span></u></span>, <span style='mso-field-code: " HYPERLINK \0022http\:\/\/i\.cs\.hku\.hk\/~ssdbm\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>SSDBM 2008</span></u></span>, <span style='mso-field-code: " HYPERLINK \0022http\:\/\/www\.icde2008\.org\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>ICDE 2008</span></u></span>, <span style='mso-field-code: " HYPERLINK \0022http\:\/\/dmsn08\.cs\.umass\.edu\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>DMSN 2008</span></u></span>, <span style='mso-field-code: " HYPERLINK \0022http\:\/\/www\.cs\.ucy\.ac\.cy\/mobide08\/TOInterest\.html\0022 \\t \0022_blank\0022 "'><span class=SpellE><span class=spelle><u><span style='color:blue'>MobiDE</span></u></span></span><u><span style='color:blue'> 2008</span></u></span>, <span style='mso-field-code:" HYPERLINK \0022http\:\/\/data\.cs\.washington\.edu\/dmsn07\/index\.htm\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>DMSN 2007</span></u></span>, <span style='mso-field-code: " HYPERLINK \0022http\:\/\/www\.vldb2007\.org\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>VLDB 2007</span></u></span>, <span style='mso-field-code: " HYPERLINK \0022http\:\/\/ssdbm2007\.cpsc\.ucalgary\.ca\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>SSDBM 2007</span></u></span>, <span style='mso-field-code: " HYPERLINK \0022http\:\/\/www\.icde2007\.org\/icde\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>ICDE 2007</span></u></span>, <span class=spelle>ESNs</span> 2007</span></a></p> <p class=reference><b style='mso-bidi-font-weight:normal'><a href="http://www.icde2007.org/icde/" target="_blank"><span style='color:windowtext; text-decoration:none;text-underline:none'>National service</span><span style='color:windowtext;font-weight:normal;text-decoration:none;text-underline: none'><br> Dr. <span class=spelle>Worboys</span> was selected as member of Mapping Science Committee (MSC) of the U.S. National Academy of Sciences/National Research Council. </span></a></b></p> <p class=style1><span class=style11><b><a href="http://www.icde2007.org/icde/" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline: none'>Awards</span><span style='color:windowtext;text-decoration:none; text-underline:none'><br> </span><span class=style7><span style='color:windowtext;font-weight:normal; text-decoration:none;text-underline:none'>Dr. Worboys received <span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.ucgis\.org\/\0022 "'><span class=style8><u><span style='color:blue'>University Consortium for Geographic Science </span></u></span><u><span style='color:blue'>(UCGIS) Research <span class=GramE>Award</span></span></u></span><span class=GramE> in 2008, and the <span style='mso-field-code:" HYPERLINK \0022http\:\/\/awards\.acm\.org\/homepage\.cfm?srt=all&amp;awd=157\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Distinguished Scientist Award</span></u></span></span> from Association of Computing Machinery in 2006. He also holds an Honorary Professorial Fellow in the Department of Geomatics, University of Melbourne, Australia since 2005.</span></span></a></b></span></p> <p><strong><a href="http://awards.acm.org/homepage.cfm?srt=all&amp;awd=157" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline: none'>Presentations, keynotes and invited lectures at multidisciplinary conferences</span></a></strong></p> <p class=reference style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo6; tab-stops:list .5in'><a href="http://awards.acm.org/homepage.cfm?srt=all&amp;awd=157" target="_blank"><![if !supportLists]><span style='mso-fareast-font-family:"Times New Roman";color:windowtext;text-decoration: none;text-underline:none'><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><![endif]><span style='color:windowtext;text-decoration:none;text-underline:none'>Jiang, J. and Worboys, M.<span style='mso-spacerun:yes'>  </span>Preliminaries for topological change detection in sensor networks. <i style='mso-bidi-font-style: normal'>3<sup>rd</sup> Int. Conf. on Geosensor Networks, </i>Oxford, England, 2009.</span></a></p> <p class=reference style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo6; tab-stops:list .5in'><a href="http://awards.acm.org/homepage.cfm?srt=all&amp;awd=157" target="_blank"><![if !supportLists]><i style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:"Times New Roman"; color:windowtext;text-decoration:none;text-underline:none'><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span></i><![endif]><span style='color:windowtext;text-decoration: none;text-underline:none'>Worboys, M.F. <span class=SpellE>senseME</span>: tracking critical infrastructure and logistical assets for emergency management. <i style='mso-bidi-font-style:normal'>Workshop on Emergency Management, Augusta, ME, 2009.<o:p></o:p></i></span></a></p> <ol start=3 type=1> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://awards.acm.org/homepage.cfm?srt=all&amp;awd=157" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>Danqing Xiao, </span><span style='mso-fareast-font-family: SimSun;color:windowtext;mso-fareast-language:ZH-CN;text-decoration:none; text-underline:none'>&quot;</span><span style='mso-fareast-font-family: SimSun;color:black;mso-fareast-language:ZH-CN;text-decoration:none; text-underline:none'>Modeling spatial changes in geosensor networks</span><span style='mso-fareast-font-family:SimSun;color:windowtext;mso-fareast-language: ZH-CN;text-decoration:none;text-underline:none'>&quot;<span class=spelle>, poster presentation at Graduate Expo, <st1:place u1:st="on"><st1:PlaceType u1:st="on">University</st1:PlaceType> of <st1:PlaceName u1:st="on">Maine</st1:PlaceName></st1:place>, April 2009</span></span><span style='color:windowtext;text-decoration:none;text-underline:none'><o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://awards.acm.org/homepage.cfm?srt=all&amp;awd=157" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>S. <span class=spelle>Nittel</span>, &quot;<span class=spelle>Geosensor</span> Networks: New Challenges in Environmental Monitoring using Wireless Sensor Networks <span style='mso-field-code: " HYPERLINK \0022http\:\/\/www\.grs\.wur\.nl\/UK\/Workshops\/scw\0022 "'>Sensing in a Changing World&quot;, </span>keynote, November 20, 2008, <i style='mso-bidi-font-style:normal'>Centre for Geo-Information</i>, <span class=SpellE><span class=spelle><st1:place u1:st="on"><st1:City u1:st="on">Wageningen</span></span></st1:City>, <st1:country-region u1:st="on">Netherlands</st1:country-region></st1:place> <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span class=spelle><span style='mso-fareast-font-family:"Times New Roman"'><a href="http://www.grs.wur.nl/UK/Workshops/scw"><span style='color:windowtext; text-decoration:none;text-underline:none'>Jixiang</span><span style='color:windowtext;text-decoration:none;text-underline:none'> Jiang, &quot;</span><span style='color:black;text-decoration:none;text-underline: none'>Detecting basic topological changes in sensor networks by local aggregation</span><span style='color:windowtext;text-decoration:none; text-underline:none'>&quot;, </span><i style='mso-bidi-font-style:normal'><span style='color:windowtext;text-decoration:none;text-underline:none'>ACM-GIS 2008</span></i><span style='color:windowtext;text-decoration:none; text-underline:none'>,</span><span style='color:windowtext;text-decoration: none;text-underline:none'> </span><span style='color:windowtext; text-decoration:none;text-underline:none'><st1:place u1:st="on"><st1:City u1:st="on">Orange Count</span><span style='color:windowtext;text-decoration:none;text-underline: none'>y</span><span style='color:windowtext;text-decoration:none; text-underline:none'></st1:City>,</span><span style='color:windowtext; text-decoration:none;text-underline:none'> </span><span style='color:windowtext; text-decoration:none;text-underline:none'><st1:State u1:st="on">C</span><span style='color:windowtext;text-decoration:none;text-underline:none'>A</span><span style='color:windowtext;text-decoration:none;text-underline:none'></st1:State></st1:place>, Nov. 2008. [</span><span style='color:windowtext;text-decoration:none; text-underline:none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.spatial\.maine\.edu\/~jixiang\.jiang\/acmgisppt\.pdf\0022 "'><u><span style='color:blue'>presentation slides</span></u></span></span><span style='color:windowtext;text-decoration:none;text-underline:none'>]</span><span style='color:windowtext;text-decoration:none;text-underline:none'><o:p></o:p></span></a></span></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~jixiang.jiang/acmgisppt.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>S. <span class=spelle>Nittel</span>, &quot;<span class=spelle>Geosensor</span> Networks: State of the Art&quot;, invited talk,<i style='mso-bidi-font-style: normal'> Computing Lab, <st1:PlaceName u1:st="on">Oxford</st1:PlaceName> <st1:PlaceType u1:st="on">University</st1:PlaceType></i>, <st1:place u1:st="on"><st1:City u1:st="on">Oxford</st1:City>, <st1:country-region u1:st="on">UK</st1:country-region></st1:place>, October 3 2008.<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='font-size:7.0pt; mso-fareast-font-family:"Times New Roman"'><a href="http://www.spatial.maine.edu/~jixiang.jiang/acmgisppt.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>&nbsp; </span><span style='font-size:12.0pt;color:windowtext;text-decoration:none;text-underline: none'>S. <span class=spelle>Nittel</span>, &quot;<span class=spelle>Geosensor</span> Networks: State of the Art&quot;, invited talk, <i style='mso-bidi-font-style: normal'>Computing Lab, <st1:PlaceName u1:st="on">Cambridge</st1:PlaceName> <st1:PlaceType u1:st="on">University</st1:PlaceType></i>, <st1:place u1:st="on"><st1:City u1:st="on">Cambridge</st1:City>, <st1:country-region u1:st="on">UK</st1:country-region></st1:place>, October 1 2008. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~jixiang.jiang/acmgisppt.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>S. <span class=spelle>Nittel</span>, &quot;<span class=spelle>Geosensor</span> Networks: State of the Art&quot;, invited talk<i style='mso-bidi-font-style: normal'>, <st1:PlaceName u1:st="on"><span class=SpellE><span class=spelle>Chungji</span></span></st1:PlaceName> <st1:PlaceType u1:st="on">University</st1:PlaceType></i>, <span class=SpellE><span class=spelle><st1:place u1:st="on"><st1:City u1:st="on">Cheongjy</span></span></st1:City>, <st1:country-region u1:st="on">Korea</st1:country-region></st1:place>, June 2008.&nbsp;<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~jixiang.jiang/acmgisppt.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>Mike </span><span class=spelle><span lang=EN-GB style='color:windowtext;mso-ansi-language: EN-GB;text-decoration:none;text-underline:none'>Worboys</span></span><span style='color:windowtext;text-decoration:none;text-underline:none'>, Invited keynote address at <i>the Workshop on Temporal GIS, the Past 20 Years and the Next 20 Years</i>,&nbsp; <st1:place u1:st="on"><st1:City u1:st="on">Park City</st1:City>, <st1:State u1:st="on">Utah</st1:State></st1:place>, 23 Sept. 2008<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~jixiang.jiang/acmgisppt.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>Mike <span class=spelle>Worboys</span>, &quot;Models of geospatial change<span class=GramE>. &quot;</span>Invited seminar given to <i>the Department of Computer Science, <st1:place u1:st="on"><st1:PlaceType u1:st="on">University</st1:PlaceType> of <st1:PlaceName u1:st="on">Minnesota</st1:PlaceName></st1:place></i>, Apr. 28, 2008.<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~jixiang.jiang/acmgisppt.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>Mike <span class=spelle>Worboys</span>, &quot;Geography in motion<span class=GramE>. &quot;</span>Invited lecture to <i><st1:PlaceType u1:st="on">University</st1:PlaceType> <st1:PlaceType u1:st="on">College</st1:PlaceType> <st1:place u1:st="on"><st1:City u1:st="on">London</st1:City>, <st1:country-region u1:st="on">England</st1:country-region></st1:place>, Centre for Advanced Spatial Analysis, </i>CASA Seminar, Jan. 23, 2008.<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='font-size:7.0pt; mso-fareast-font-family:"Times New Roman"'><a href="http://www.spatial.maine.edu/~jixiang.jiang/acmgisppt.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>&nbsp; </span><span style='font-size:12.0pt;color:windowtext;text-decoration:none;text-underline: none'>Mike <span class=spelle>Worboys</span>, &quot;Geography in motion<span class=GramE>. &quot;</span>Invited lecture to <i><st1:place u1:st="on"><st1:City u1:st="on">University of Edinburgh</i></st1:City>, <st1:country-region u1:st="on">Scotland</st1:country-region></st1:place>, <span class=SpellE><span class=spelle>EScience</span></span> Centre Guest Lecture, Mar. 11, 2008.<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='font-size:7.0pt; mso-fareast-font-family:"Times New Roman"'><a href="http://www.spatial.maine.edu/~jixiang.jiang/acmgisppt.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>&nbsp;</span><span style='font-size:12.0pt;color:windowtext;text-decoration:none;text-underline: none'>Mike <span class=spelle>Worboys</span>, &quot;Geospatial change<span class=GramE>. &quot;</span>Invited presentation, delivered to the<span class=GramE>&nbsp; <i>Third</i></span><i> Environment Ontology Workshop at The University of Manchester</i>, <st1:place u1:st="on"><st1:country-region u1:st="on">England</st1:country-region></st1:place>, Mar. 13-15, 2008.<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~jixiang.jiang/acmgisppt.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>Mike <span class=spelle>Worboys</span>, Invited lectures on <span class=spelle>spatio</span>-temporal formation systems, delivered remotely to the <i>IFGI Spring School</i>, <st1:place u1:st="on"><st1:City u1:st="on">University of Munster</st1:City>, <st1:country-region u1:st="on">Germany</st1:country-region></st1:place>, <span class=GramE>Mar</span>. 2008.<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~jixiang.jiang/acmgisppt.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>Cheng <span class=SpellE><span class=spelle>Zhong</span></span>. &quot;Continuous contour mapping in sensor networks<span class=GramE>. &quot;</span><i>&nbsp;CCNC 2008</i>, <st1:place u1:st="on"><st1:City u1:st="on">Las Vegas</st1:City>, <st1:State u1:st="on">NV</st1:State></st1:place>, 2008. [<span style='mso-field-code:" HYPERLINK \0022SensorProj\/Tech\/ccnc_presentation\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>presentation slides</span></u></span>]<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="SensorProj/Tech/ccnc_presentation.pdf" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>Silvia <span class=spelle>Nittel</span>. &quot;<span class=spelle>Geosensor</span> networks: state of the art and looking ahead.&quot;Keynote, <i>Muenster GI-Days</i>, 2007<span class=GramE>&nbsp; <st1:place u1:st="on"><st1:City u1:st="on">Muenster</span></st1:City>, <st1:country-region u1:st="on">Germany</st1:country-region></st1:place>, Sept. 11 2007.<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='font-size:7.0pt; mso-fareast-font-family:"Times New Roman"'><a href="SensorProj/Tech/ccnc_presentation.pdf" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>&nbsp;</span><span style='font-size:12.0pt;color:windowtext;text-decoration:none;text-underline: none'>Silvia <span class=spelle>Nittel</span>. &quot;<span class=spelle>Geosensor</span> networks: a vision perspective.&quot;Invited Talk, <i>Invited Workshop on Ubiquitous Spatial Computing,</i> <st1:place u1:st="on"><st1:City u1:st="on">Portland</st1:City>, <st1:State u1:st="on">ME</st1:State></st1:place>, Jan. 15 2007.&nbsp;<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='font-size:7.0pt; mso-fareast-font-family:"Times New Roman"'><a href="SensorProj/Tech/ccnc_presentation.pdf" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>&nbsp; </span><span style='font-size:12.0pt;color:windowtext;text-decoration:none;text-underline: none'>Cheng <span class=SpellE><span class=spelle>Zhong</span></span> &quot;Generating contours in a sensor network using <span class=SpellE><span class=spelle>isovector</span></span> aggregation<span class=GramE>. &quot;</span><i>The 5th IEEE Upstate NY Workshop on Communications, Sensors and Networking</i>, 2007. [<span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.ecs\.syr\.edu\/research\/snw\/cheng\.ppt\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>presentation slides</span></u></span>]<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l0 level1 lfo6;tab-stops:list .5in'><span style='font-size:7.0pt; mso-fareast-font-family:"Times New Roman"'><a href="http://www.ecs.syr.edu/research/snw/cheng.ppt" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>&nbsp; </span><span class=spelle><span style='font-size:12.0pt;color:windowtext;text-decoration: none;text-underline:none'>Danqing</span></span><span style='font-size: 12.0pt;color:windowtext;text-decoration:none;text-underline:none'> Xiao, &quot;Study of cultural impacts on location judgments in eastern <st1:place u1:st="on"><st1:country-region u1:st="on">China<span class=GramE></st1:country-region></st1:place>. &quot;</span><i>COSIT 2007</i>. [<span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.spatial\.maine\.edu\/~dxiao\/doc\/cosit07_danqing\.pdf\0022 "'><u><span style='color:blue'>presentation slides</span></u></span>]<o:p></o:p></span></a></span></li> </ol> <p class=style1><strong><a href="http://www.spatial.maine.edu/~dxiao/doc/cosit07_danqing.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>Related research awards (accepted/submitted)</span></a></strong></p> <p class=reference style='margin-left:.5in;text-indent:-.25in;mso-list:l2 level1 lfo7; tab-stops:list .5in'><a href="http://www.spatial.maine.edu/~dxiao/doc/cosit07_danqing.pdf"><![if !supportLists]><span style='mso-fareast-font-family:"Times New Roman";color:windowtext;text-decoration: none;text-underline:none'><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><![endif]><span style='color:windowtext;text-decoration:none;text-underline:none'>M. Worboys (PI), K. Beard, S. Nittel, A. <span class=SpellE>Abedi</span>, Global Relief Technologies, Critical Infrastructure and Logistical Assets, $490,000, 2009-2010.</span></a></p> <ol start=2 type=1> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l2 level1 lfo7;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~dxiao/doc/cosit07_danqing.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>M. Worboys, Government of South Korea, <em>Indoor Spatial Awareness</em>, $270,000, 2008-2011.<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l2 level1 lfo7;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~dxiao/doc/cosit07_danqing.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>K. Beard, R. Lad, R. Smith, J. <span class=SpellE>Vetelino</span> and M. Worboys, National Science Foundation, Research Grant DGE-0504494, IGERT, <em>Sensor Science, Engineering, and Informatics</em>, $3,339,065, 2005-2010.<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l2 level1 lfo7;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~dxiao/doc/cosit07_danqing.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>M. Worboys, Ordnance Survey of Great Britain, <em>for research with Oracle Inc. to develop a spatiotemporal data model</em>, $138,000, 2005-2007<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l2 level1 lfo7;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~dxiao/doc/cosit07_danqing.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>M. Worboys, <span class=SpellE>N.Guidice</span>, National Science Foundation, Research Grant, Proposal No: 0916219, <span class=SpellE>III<span class=GramE>:RI:Small</span></span>: <em>Information integration and human interaction for indoor and outdoor spaces</em>, $478,715, submitted Dec. 2008.<o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l2 level1 lfo7;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~dxiao/doc/cosit07_danqing.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>M. Worboys, J. Saros, J. Peckenham, National Science Foundation, Research Grant, Proposal No<span class=GramE>:0916255</span>, <span class=SpellE>III:Small</span>: <em>Decentralized spatiotemporal computing for monitoring environmental phenomena</em>, $494,968, submitted Dec. 2008.<o:p></o:p></span></a></span></li> </ol> <p class=style4><a href="http://www.spatial.maine.edu/~dxiao/doc/cosit07_danqing.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'><span style='mso-field-code:" HYPERLINK \0022\0022 \\l \0022top\0022 "'><u><span style='color:blue'>[<span class=GramE>back</span> to top]</span></u></span></span></a></p> <div class=MsoNormal align=center style='text-align:center'><span style='mso-fareast-font-family:"Times New Roman"'><a href="#top"><span style='color:windowtext;text-decoration:none;text-underline:none'> <hr size=2 width="100%" align=center> </span></a></span></div> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a name=resources></a><a href="#top"><span style='mso-bookmark:resources'><strong><span style='font-size:18.0pt;color:windowtext;text-decoration:none;text-underline: none'>Resources</span></strong></span><span style='mso-bookmark:resources'></span></a></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span class=style11><b><a href="#top"><span style='color:windowtext;text-decoration: none;text-underline:none'>Papers in the area of homology in sensor networks</span></a></b></span></p> <ol style='margin-top:0in' start=1 type=1> <li class=MsoNormal style='color:black;margin-top:12.0pt;mso-margin-bottom-alt: auto;mso-list:l7 level1 lfo8;tab-stops:list .5in'><span lang=PT-BR style='mso-fareast-font-family:"Times New Roman";color:windowtext; mso-ansi-language:PT-BR'><a href="#top"><span style='color:windowtext; text-decoration:none;text-underline:none'>V Silva, R Ghrist, &quot;<span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.ams\.org\/notices\/200701\/fea-ghrist\.pdf\0022 "'><u><span style='color:blue'>Homological sensor networks</span></u></span>. </span><span lang=EN-US style='color:windowtext;mso-ansi-language:EN-US;text-decoration: none;text-underline:none'>&quot;In Notices of the American Mathematical Society<span class=GramE>,<span style='mso-spacerun:yes'>  </span>54</span>(1), pp. 10  17, 2007.</span><span lang=EN-US style='color:black;mso-ansi-language: EN-US;text-decoration:none;text-underline:none'><o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l7 level1 lfo8;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.ams.org/notices/200701/fea-ghrist.pdf"><span class=GramE><span style='color:windowtext;text-decoration:none;text-underline:none'>R. <span class=SpellE><span class=spelle>Ghrist</span></span>, and A. Muhammad.</span></span><span style='color:windowtext;text-decoration:none;text-underline:none'> <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/users\.ece\.gatech\.edu\/~abubakr\/papers\/Muhammad_Ghrist_IPSN05_final\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Coverage and hole-detection in sensor networks via homology</span></u></span>.&quot;In Proc. 4th <span class=SpellE><span class=spelle>Internat</span>.</span> <span class=SpellE><span class=spelle>Sympos</span></span>. Information Processing in Sensor Networks, pp. 254 260, 2005.<o:p></o:p></span></a></span></li> <li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt: auto;mso-list:l7 level1 lfo8;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://users.ece.gatech.edu/~abubakr/papers/Muhammad_Ghrist_IPSN05_final.pdf" target="_blank"><span style='color:black;text-decoration:none;text-underline: none'>C. A. <span class=SpellE><span class=spelle>Delfinado</span></span>, and H <span class=SpellE><span class=spelle>Edelsbrunner</span></span>, </span><span class=grame><span style='color:windowtext;text-decoration:none;text-underline: none'>&quot;</span></span><span style='color:windowtext;mso-bidi-font-weight: bold;text-decoration:none;text-underline:none'><span style='mso-field-code: " HYPERLINK \0022http\:\/\/www\.mpi-inf\.mpg\.de\/~jgiesen\/tch\/sem06\/betti-incremental\.pdf\0022 "'><u><span style='color:blue'>An incremental algorithm for <span class=spelle>Betti</span> numbers of <span class=spelle>simplicial</span> complexes</span></u></span><span class=GramE>.<span style='mso-bidi-font-weight:normal'> &quot;</span></span>In Proceedings of the ninth annual symposium on Computational geometry, pp. 232-239, 1993.</span><span style='color:windowtext;text-decoration:none; text-underline:none'> </span><span style='color:black;text-decoration: none;text-underline:none'><o:p></o:p></span></a></span></li> <li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt: auto;mso-list:l7 level1 lfo8;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.mpi-inf.mpg.de/~jgiesen/tch/sem06/betti-incremental.pdf"><span style='color:black;text-decoration:none;text-underline:none'>Muhammad and A. <span class=SpellE><span class=spelle>Jadbabaie</span></span>, </span><span class=grame><span style='color:windowtext;text-decoration:none;text-underline: none'>&quot;</span></span><span style='color:black;text-decoration:none; text-underline:none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.seas\.upenn\.edu\/~jadbabai\/papers\/Muhammad_Jadbabaie_ACC07_FinalSubmission\.pdf\0022 "'><u><span style='color:blue'>Decentralized computation of homology groups in networks by gossip</span></u></span><span class=GramE>.<span style='color:windowtext'> &quot;</span></span>In Proceedings of American Control Conference, pp. 3438-3443, 2007.<o:p></o:p></span></a></span></li> </ol> <p><strong><a href="http://www.seas.upenn.edu/~jadbabai/papers/Muhammad_Jadbabaie_ACC07_FinalSubmission.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>Papers in the area of boundary (contour) detecting and reporting </span></a></strong></p> <ol style='margin-top:0in' start=1 type=1> <li class=MsoNormal style='margin-top:12.0pt;mso-margin-bottom-alt:auto; mso-list:l11 level1 lfo9;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.seas.upenn.edu/~jadbabai/papers/Muhammad_Jadbabaie_ACC07_FinalSubmission.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>J. <span class=SpellE><span class=spelle>Lian</span></span>, L. Chen<span class=GramE><span class=grame>,<span style='mso-spacerun:yes'>  </span>K</span></span>. <span class=SpellE><span class=spelle>Naik</span></span>, Y. Liu, and G.B. Agnew, &quot;<span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.cse\.ust\.hk\/~leichen\/papers\/tpds07-gbd\.pdf\0022 "'><u><span style='color:blue'>Gradient boundary detection for time series snapshot construction in sensor networks</span></u></span>. &quot;In <span style='mso-bidi-font-style:italic'>IEEE Transactions on Parallel and Distributed Systems</span>, 18(10), pp. 1462 1475, 2007. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l11 level1 lfo9;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.cse.ust.hk/~leichen/papers/tpds07-gbd.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>X. Zhu, R. <span class=SpellE><span class=spelle>Sarkar</span></span>, J. <span class=SpellE><span class=GramE><span class=spelle>Gao</span></span></span>, and J.S.B. Mitchell, <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.cs\.sunysb\.edu\/~jgao\/paper\/contour-infocom08\.pdf\0022 "'><u><span style='color:blue'>Light-weight contour tracking in wireless sensor networks</span></u></span>.&quot;In INFOCOM, 2008, pp. 1175 1183. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l11 level1 lfo9;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.cs.sunysb.edu/~jgao/paper/contour-infocom08.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>R.&nbsp; <span class=SpellE><span class=spelle>Sarkar</span></span>,&nbsp;X. Zhu,&nbsp;J.&nbsp;<span class=SpellE><span class=spelle>Gao</span></span>,&nbsp;L.J. <span class=SpellE><span class=spelle>Guibas</span></span>, and J.S.B. Mitchell, &quot;</span><span class=SpellE><span style='mso-field-code: " HYPERLINK \0022http\:\/\/www\.cs\.sunysb\.edu\/~jgao\/paper\/contourtree-infocom08\.pdf\0022 "'><span class=spelle>Iso</span>-contour queries and gradient descent with guaranteed delivery in sensor networks</span></span><span style='color:windowtext;text-decoration:none;text-underline:none'>.&quot;In INFOCOM, 2008, pp. 960 967. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l11 level1 lfo9;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.cs.sunysb.edu/~jgao/paper/contourtree-infocom08.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>S. Gandhi, J.&nbsp; Hershberger, and S.&nbsp; <span class=SpellE><span class=spelle>Suri</span></span>, <span class=grame>&quot;</span></span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.cs\.ucsb\.edu\/~suri\/psdir\/ipsn07\.pdf\0022 "'>Approximate <span class=SpellE><span class=spelle>isocontours</span></span> and spatial summaries for sensor networks</span><span style='color:windowtext; text-decoration:none;text-underline:none'>.&quot;In IPSN, 2007, pp. 400 409. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l11 level1 lfo9;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.cs.ucsb.edu/~suri/psdir/ipsn07.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>A. Silberstein, R. <span class=SpellE><span class=spelle>Braynard</span></span>, and J. Yang, &quot;<span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.cs\.duke\.edu\/dbgroup\/papers\/2006-SIGMOD-sby-conch\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Constraint chaining: on energy-efficient continuous monitoring in sensor networks</span></u></span>.&quot;In Proc. of the 2006 ACM SIGMOD Intl. Conf. on Management of Data, 2006, pp. 157 168. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l11 level1 lfo9;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.cs.duke.edu/dbgroup/papers/2006-SIGMOD-sby-conch.pdf" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>I. Solis, and K. <span class=SpellE><span class=spelle>Obraczka</span></span>, <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.euronetlab\.com\/seminar\/solis_140904\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Efficient continuous mapping in sensor networks using <span class=SpellE><span class=spelle>isolines</span></span></span></u></span>.&quot;In Proc. of the 2005 <span class=SpellE><span class=spelle>MobiQuitous</span></span>, 2005, pp. 325 332. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l11 level1 lfo9;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.euronetlab.com/seminar/solis_140904.pdf" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>J. M. <span class=SpellE><span class=spelle>Hellerstein</span></span>, <st1:place u1:st="on">W. Hong</st1:place>, S. Madden, and K. <span class=SpellE><span class=spelle>Stanek</span></span>, &quot;<span style='mso-field-code:" HYPERLINK \0022http\:\/\/db\.cs\.berkeley\.edu\/papers\/ipsn03-beyondavg\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Beyond average: Toward sophisticated sensing with queries</span></u></span>.&quot;In IPSN, 2003, pp. 63 79. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l11 level1 lfo9;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://db.cs.berkeley.edu/papers/ipsn03-beyondavg.pdf" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>X. <span class=SpellE><span class=spelle>Meng</span></span>, L. Li, T. <span class=SpellE><span class=spelle>Nandagopal</span></span>, and S. Lu, &quot;<span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.cs\.ucla\.edu\/wing\/publication\/papers\/Meng\.TR-040018\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Event contour: An efficient and robust mechanism for tasks in sensor networks</span></u></span>.&quot;Technical Report, UCLA, 2004. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l11 level1 lfo9;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.cs.ucla.edu/wing/publication/papers/Meng.TR-040018.pdf" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>K. <span class=SpellE><span class=spelle>Chintalapudi</span></span>, and R. <span class=SpellE><span class=spelle>Govindan</span></span>, <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/cs\.usc\.edu\/~ramesh\/papers\/edge_detection\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Localized edge detection in sensor fields</span></u></span>.&quot;In Ad Hoc Networks, vol. 1, no. 2-3, pp. 273 291, 2003. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l11 level1 lfo9;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://cs.usc.edu/~ramesh/papers/edge_detection.pdf" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>M. Ding, D. Chen, K. Xing, and X. Cheng, <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.seas\.gwu\.edu\/~cheng\/Publication\/PID48574\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Localized fault-tolerant event boundary detection in sensor networks</span></u></span> .&quot;In INFOCOM, 2005, pp. 902 913. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l11 level1 lfo9;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.seas.gwu.edu/~cheng/Publication/PID48574.pdf" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>B. <span class=SpellE><span class=spelle>Krishnamachari</span></span>, and <st1:place u1:st="on">S. <span class=SpellE><span class=spelle>Iyengar</span></span></st1:place>, <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/citeseer\.ist\.psu\.edu\/krishnamachari04distributed\.html\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Distributed <span class=SpellE><span class=spelle>bayesian</span></span> algorithms for fault-tolerant event region detection in wireless sensor networks</span></u></span>.&quot;In IEEE Transactions on Computers, Vol. 53, No. 3, pp. 241 250, March 2004. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l11 level1 lfo9;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://citeseer.ist.psu.edu/krishnamachari04distributed.html" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>J. Zhao, R. <span class=SpellE><span class=spelle>Govindan</span></span>, and D. <span class=SpellE><span class=spelle>Estrin</span></span>: <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.icsi\.berkeley\.edu\/~zhao\/papers\/escan-wcnc02\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Residual energy scans for monitoring wireless sensor networks</span></u></span>.&quot;In: Proceedings of the IEEE <span class=SpellE><span class=spelle>Wilress</span></span> Communications and Networking Conference (WCNC 02). (2002) 17 21 <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l11 level1 lfo9;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.icsi.berkeley.edu/~zhao/papers/escan-wcnc02.pdf" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>R. Nowak, and U. <span class=SpellE><span class=spelle>Mitra</span></span>, &quot;<span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.ece\.wisc\.edu\/~nowak\/IPSN\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Boundary estimation in sensor networks: theory and methods</span></u></span>.&quot;In Proceedings of the First International Workshop on Information Processing in Sensor Networks, April 2003. <o:p></o:p></span></a></span></li> </ol> <p><strong><a href="http://www.ece.wisc.edu/~nowak/IPSN.pdf" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>Papers in the area of dynamic network configuration</span></a></strong></p> <ol style='margin-top:0in' start=1 type=1> <li class=MsoNormal style='margin-top:12.0pt;mso-margin-bottom-alt:auto; mso-list:l9 level1 lfo10;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.ece.wisc.edu/~nowak/IPSN.pdf" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>M.K. <span class=SpellE><span class=spelle>Watfa</span></span>, and S. <span class=SpellE><span class=spelle>Commuri</span></span>, <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.academypublisher\.com\/jnw\/vol01\/no04\/jnw01041020\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>An energy efficient approach to dynamic coverage in wireless sensor networks</span></u></span>.&quot;In Journal of Networks, Vol. 1, No. 4, Aug. 2006. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l9 level1 lfo10;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.academypublisher.com/jnw/vol01/no04/jnw01041020.pdf" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>M. <span class=spelle>Duckham</span>, S. <span class=spelle>Nittel</span>, and M.F. <span class=spelle>Worboys</span>, <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.spatial\.maine\.edu\/~worboys\/mywebpapers\/acmgis%202005\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Monitoring dynamic spatial fields using responsive <span class=spelle>geosensor</span> networks</span></u></span>.&quot;In ACMGIS 2005: 51 60 <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l9 level1 lfo10;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.spatial.maine.edu/~worboys/mywebpapers/acmgis%202005.pdf" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>K. <span class=SpellE><span class=spelle>Kar</span></span>, A. Krishnamurthy, and N. <span class=SpellE><span class=spelle>Jaggi</span></span>, <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.ieee-infocom\.org\/2005\/44_04\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Dynamic node activation in networks of rechargeable sensors</span></u></span>.&quot;In INFOCOM 2005. 24th Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings IEEE Volume 3, 1997 2007. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l9 level1 lfo10;tab-stops:list .5in'><st1:place u1:st="on"><span style='mso-fareast-font-family:"Times New Roman"'><a href="http://www.ieee-infocom.org/2005/44_04.pdf" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>W. Zhang</st1:place>, and G. Cao, &quot;<span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.cs\.iastate\.edu\/~wzhang\/papers\/paper-trans-wc\.pdf\0022 "'><u><span style='color:blue'>DCTC: Dynamic convoy tree-based collaboration for mobile target tracking</span></u></span>.&quot;&nbsp;In IEEE Transactions on Wireless Communications, Vol. 3, No. 5, pp. 1689 1701, 2004. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l9 level1 lfo10;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.cs.iastate.edu/~wzhang/papers/paper-trans-wc.pdf"><span style='color:windowtext;text-decoration:none;text-underline:none'>J. Liu, P. Cheung<span class=GramE><span class=grame>, &nbsp;L</span></span>. <span class=SpellE><span class=spelle>Guibas</span></span>, and F. Zhao, &nbsp;&quot;<span style='mso-field-code:" HYPERLINK \0022http\:\/\/citeseer\.ist\.psu\.edu\/552770\.html\0022 "'><u><span style='color:blue'>A dual-space approach to tracking and sensor management in wireless sensor networks</span></u></span>.&quot;In WSNA<span class=GramE>, &nbsp;pp</span>. 131 139, 2002. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l9 level1 lfo10;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://citeseer.ist.psu.edu/552770.html"><span style='color:windowtext;text-decoration:none;text-underline:none'>Y. <span class=SpellE><span class=spelle>Xu</span></span>, J. <span class=SpellE><span class=spelle>Heidemann</span></span>, and D. <span class=SpellE><span class=spelle>Estrin</span></span>, <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.isi\.edu\/~johnh\/PAPERS\/Xu01a\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Geography-informed energy conservation for ad-hoc routing</span></u></span>.&quot;In Proceedings of the Seventh Annual ACM/IEEE International Conference on <st1:place u1:st="on">Mobile</st1:place> Computing and Networking 2001, pp. 70 84. <o:p></o:p></span></a></span></li> </ol> <p><strong><a href="http://www.isi.edu/~johnh/PAPERS/Xu01a.pdf" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>Papers in the area of topological boundary detection</span></a></strong></p> <ol style='margin-top:0in' start=1 type=1> <li class=MsoNormal style='margin-top:12.0pt;mso-margin-bottom-alt:auto; mso-list:l3 level1 lfo11;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.isi.edu/~johnh/PAPERS/Xu01a.pdf" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>Q. Fang, J. <span class=SpellE><span class=GramE><span class=spelle>Gao</span></span></span>, and L. <span class=SpellE><span class=spelle>Guibas</span></span>. <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.ieee-infocom\.org\/2004\/Papers\/51_3\.PDF\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Locating and bypassing routing holes in sensor networks</span></u></span>.&quot;In Proc. Mobile Networks and Applications, vol. 11, pp. 187 200, 2006. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l3 level1 lfo11;tab-stops:list .5in'><span lang=DE style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:DE'><a href="http://www.ieee-infocom.org/2004/Papers/51_3.PDF" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>A. Kr</span><span style='font-family:"Arial Unicode MS","sans-serif";color:windowtext; text-decoration:none;text-underline:none'>ö</span><span style='color:windowtext; text-decoration:none;text-underline:none'>ller, S.P. Fekete, D. Pfisterer, and S. Fischer. </span><span class=grame><span lang=EN-US style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none; text-underline:none'>&quot;</span></span><span lang=EN-US style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none; text-underline:none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.math\.tu-bs\.de\/~ali\/kroeller06deterministicboundary\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Deterministic boundary recognition and topology extraction for large sensor networks</span></u></span>.&quot;In Proc. 17th ACM-SIAM <span class=SpellE><span class=spelle>Sympos</span></span>. Discrete Algorithms, pp. 1000 1009, 2006. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l3 level1 lfo11;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.math.tu-bs.de/~ali/kroeller06deterministicboundary.pdf" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>Y. Wang, J. <span class=SpellE><span class=GramE><span class=spelle>Gao</span></span></span>, and J.S.B. Mitchell, <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.cs\.sunysb\.edu\/~jgao\/paper\/boundary-mobicom06\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Boundary recognition in sensor networks by topological methods</span></u></span>.&quot;The 12th Annual International Conference on <st1:place u1:st="on">Mobile</st1:place> Computing and Networking (MobiCom'06), 122 133, September, 2006. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l3 level1 lfo11;tab-stops:list .5in'><span lang=DE style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:DE'><a href="http://www.cs.sunysb.edu/~jgao/paper/boundary-mobicom06.pdf" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>S.P. Fekete, M. Kaufmann, A. Kr</span><span style='font-family:"Arial Unicode MS","sans-serif";color:windowtext; text-decoration:none;text-underline:none'>ö</span><span style='color:windowtext; text-decoration:none;text-underline:none'>ller, and N. Lehmann. </span><span class=grame><span lang=EN-US style='color:windowtext;mso-ansi-language: EN-US;text-decoration:none;text-underline:none'>&quot;</span></span><span lang=EN-US style='color:windowtext;mso-ansi-language:EN-US;text-decoration: none;text-underline:none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.cccg\.ca\/proceedings\/2005\/31\.ps\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>A new approach for boundary recognition in geometric sensor networks</span></u></span>.&quot;In Proc. 17th Canadian Conference on Computational Geometry, pp. 82 85, 2005. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l3 level1 lfo11;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://www.cccg.ca/proceedings/2005/31.ps" target="_blank"><span style='color:windowtext;text-decoration:none; text-underline:none'>S. <span class=SpellE><span class=spelle>Funke</span></span>. <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/gridnet\.nec-labs\.com\/dialm\/pdf\/p44-funke\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Topological <span class=GramE>hole</span> detection in wireless sensor networks and its applications</span></u></span>.&quot;In Proc. Joint Workshop on Foundations of <st1:place u1:st="on">Mobile</st1:place> Computing, pp. 44 53, 2005. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l3 level1 lfo11;tab-stops:list .5in'><span lang=DE style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:DE'><a href="http://gridnet.nec-labs.com/dialm/pdf/p44-funke.pdf" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>S.P. Fekete, A. Kr</span><span style='font-family:"Arial Unicode MS","sans-serif"; color:windowtext;text-decoration:none;text-underline:none'>ö</span><span style='color:windowtext;text-decoration:none;text-underline:none'>ller, D. Pfisterer, S. Fischer, and C. Buschmann. </span><span class=grame><span lang=EN-US style='color:windowtext;mso-ansi-language:EN-US;text-decoration: none;text-underline:none'>&quot;</span></span><span lang=EN-US style='color:windowtext;mso-ansi-language:EN-US;text-decoration:none; text-underline:none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/arxiv\.org\/PS_cache\/cs\/pdf\/0405\/0405058v1\.pdf\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Neighborhood-based topology recognition in sensor networks</span></u></span>.&quot;In Proc. of ALGOSENSORS, Springer LNCS vol. 3121, pp. 123 136, 2004. <o:p></o:p></span></a></span></li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l3 level1 lfo11;tab-stops:list .5in'><span style='mso-fareast-font-family: "Times New Roman"'><a href="http://arxiv.org/PS_cache/cs/pdf/0405/0405058v1.pdf" target="_blank"><span style='color:windowtext;text-decoration:none;text-underline:none'>B. Deb, S. <span class=SpellE><span class=spelle>Bhatnagar</span></span>, and B. <span class=SpellE><span class=spelle>Nath</span></span>. <span class=grame>&quot;</span><span style='mso-field-code:" HYPERLINK \0022http\:\/\/citeseer\.ist\.psu\.edu\/564231\.html\0022 "'><u><span style='color:blue'>STREAM: Sensor topology retrieval at multiple resolutions</span></u></span>.&quot;In Telecommunication Systems 26(2-4), pp. 285 320, 2004. <o:p></o:p></span></a></span></li> </ol> <p><strong><a href="http://citeseer.ist.psu.edu/564231.html"><span style='color:windowtext;text-decoration:none;text-underline:none'>Other useful paper resources</span></a></strong></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a href="http://citeseer.ist.psu.edu/564231.html"><span style='color:windowtext; text-decoration:none;text-underline:none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/ceng\.usc\.edu\/~anrg\/SensorNetBib\.html\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>A Wireless Sensor Networks <span class=GramE><span class=grame>Bibliography </span></span></span></u></span>, <span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.cs\.duke\.edu\/~alvy\/courses\/sensors\/Papers\.html\0022 "'><u><span style='color:blue'>Distributed sensor network reading list</span></u></span></span></a></p> <p class=style3><strong><a href="http://www.cs.duke.edu/~alvy/courses/sensors/Papers.html"><span style='color:windowtext;text-decoration:none;text-underline:none'>Simulation tools</span></a></strong></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a href="http://www.cs.duke.edu/~alvy/courses/sensors/Papers.html"><span style='color:windowtext;text-decoration:none;text-underline:none'><span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.cs\.berkeley\.edu\/~pal\/research\/tossim\.html\0022 \\t \0022_blank\0022 "'><span class=SpellE><span class=grame><u><span style='color:blue'>TinyOS</span></u></span></span></span>, <span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.isi\.edu\/nsnam\/ns\/\0022 \\t \0022_blank\0022 "'><u><span style='color:blue'>Network Simulator 2</span></u></span>, <span style='mso-field-code:" HYPERLINK \0022http\:\/\/www\.isis\.vanderbilt\.edu\/projects\/nest\/prowler\0022 "'><u><span style='color:blue'>Prowler</span></u></span></span></a></p> </div> <p class=style4><a href="http://www.isis.vanderbilt.edu/projects/nest/prowler"><span style='color:windowtext;text-decoration:none;text-underline:none'><span style='mso-field-code:" HYPERLINK \0022\0022 \\l \0022top\0022 "'><u><span style='color:blue'>[<span class=GramE>back</span> to top]</span></u></span></span></a></p> </div> </body> </html>