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Towards Ontological Question Answering
by:In: Proc. ACL2001, Workshop on Open Domanin QA Toulouse:
(2001)
.
Abstract
This paper presents and ontology-based semantic framework to question answering. Both questions and source text are parsed into underspecified semantic expressions where names of semantic atoms and predicates are defined in an interlingual ontology. Answer retrieval is done using subsumption and unification, and queries are expanded incrementally using ontological rules. Ranking of answers is achieved by using graded unification.
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