AAAI Publications, Ninth Symposium of Abstraction, Reformulation, and Approximation

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Extracting Topological Information from Spatial Constraint Databases
Shasha Wu, Peter Revesz

Last modified: 2011-12-14


This paper presents an efficient topology information extraction algorithm that is capable of extracting primary topological relations, such as, interior, boundary, and exterior from a single spatial or spatio-temporal object stored in a linear constraint database. Any non-spatial constraints will be preserved so that the input spatio-temporal object’s temporal constraints will not be sacrificed by the algorithm. Based on the three primary topological relations, more topological relations between regions, lines, and points can be defined in a constraint database for future spatial analysis.

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