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Issue No. 02 - February (2010 vol. 22)
ISSN: 1041-4347
pp: 161-178
Eliseo Clementini , University of L'Aquila, L'Aquila
Spiros Skiadopoulos , University of Peloponnese, Tripolis
Roland Billen , University of Liege, Liege
Francesco Tarquini , University of L'Aquila, L'Aquila
This paper introduces a reasoning system based on a previously developed model for ternary projective relations between spatial objects. The model applies to spatial objects of the kind point and region is based on basic projective invariants and takes into account the size and shape of the three objects that are involved in a relation. The reasoning system proposes a set of permutation and composition rules, which allow the inference of unknown relations from given ones.
Qualitative spatial reasoning, spatial relations, projective relations, ternary relations, reasoning system, composition tables, geometric configurations.

E. Clementini, F. Tarquini, R. Billen and S. Skiadopoulos, "A Reasoning System of Ternary Projective Relations," in IEEE Transactions on Knowledge & Data Engineering, vol. 22, no. , pp. 161-178, 2009.
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