Mitra Debasis

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This extended abstract presents a new scheme for qualitative reasoning with directions between points in 2D-space, called Star-ontology(6). The current results of our study on the complexity issues for reasoning with incomplete/disjunctive information using this new ontology has been outlined here. We have also proposed a generalized framework Star-ontology(a) for an integer a, that could be specialized to many ontologies including some of the known ones like the 2D-Cradinal ontology for a=4, and the currently studied one for a=6. This generalization also points to an interesting direction for investigation in the field of spatio-temporal reasoning.

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