Towards ontological question answering
ODQA '01 Proceedings of the workshop on Open-domain question answering - Volume 12（2001）
摘要
This paper presents an ontology-based semantic framework to question answering. Both question 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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关键词
underspecified semantic expression,ontology-based semantic framework,source text,interlingual ontology,ontological rule,answer retrieval,semantic atom,graded unification,towards ontological question answering,question answering
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