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CHOROS 2: Improving the Performance of Qualitative Spatial Reasoning in OWL

Petrakis Evripidis, Mainas Nikolaos

Πλήρης Εγγραφή


URI: http://purl.tuc.gr/dl/dias/D6DEA224-0B59-4B2E-A7DF-595CA68AA72A
Έτος 2014
Τύπος Περίληψη Δημοσίευσης σε Συνέδριο
Άδεια Χρήσης
Λεπτομέρειες
Βιβλιογραφική Αναφορά Nikolaos Mainas, Euripides G.M. Petrakis. (2014, Nov.).CHOROS 2: Improving the performance of qualitative spatial reasoning in OWL. Presented at IEEE International Conference on Tools with Artificial Intelligence.[Online].Available:http://www.intelligence.tuc.gr/~petrakis/publications/CHOROSv2.pdf
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Περίληψη

We investigate on potential improvements to reasoning methods for topological and directional spatial information in OWL. Building upon path consistency, the new reasoner design, referred to as CHOROS 2, suggests several optimizations forreducing the number of compositions of basic relations and for speeding-up its run-time performance. CHOROS 2 serves also as a framework for a realistic evaluation of several alternative reasoner designs discussed in this paper. Perhaps, one of themost interesting alternatives that deserves further investigation relies on the idea of decomposing directional relations into two smaller sets of basic relations yielding fewer compositions.CHOROS 2 infers all implied relations and detects inconsistencieswhile retaining soundness, completeness and tractability over thesupported relations sets. Experimental results demonstrate thatall variants of CHOROS 2 run up to several times faster thanboth CHOROS 1 (its previous implementation) and SOWL,a spatial reasoner implemented in SWRL which runs underProtege

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