Kathleen Hornsby and
Max Egenhofer Tenth International Workshop on Database and Expert Systems Applications: Spatio-Temporal Data Models and Languages, Florence, Italy,
A. M. Tjoa, A. Cammelli, and R. Wagner (eds.), IEEE Computer Society, pp. 487-491, August 1999.
Abstract
Spatio-temporal knowledge representation often requires shifting
from one level of detail to another so that users can carry out a
desired task. geographic information systems typically treat such
alterations in detail with respect to the geometric properties of
objects. In this paper, we extend the theories based on geometrical
considerations only to an approach that focuses on shifts between
levels of temporal detail. The approach is based on a model of
change to identifiable objects and describes temporal zooming that
involves expanding or collapsing the transitions between identity
states of objects. This work offers promising new directions for
spatio-temporal query languages.
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Kathleen Hornsby and
Max Egenhofer