Using application-specific ontologies to improve performance in a bottom-up parser

  • Authors:

  • Marta Gatius;Meritxell González

  • Affiliations:

  • Technical University of Catalonia, Barcelona, Spain;Technical University of Catalonia, Barcelona, Spain

  • Venue:
  • KRAQ '06 Proceedings of the Workshop KRAQ'06 on Knowledge and Reasoning for Language Processing
  • Year:
  • 2006

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Abstract

This paper describes how the application specific knowledge represented in ontologies is used to improve the processing of user interventions in a multilingual dialogue system for multiple applications. The user interventions are processed by a left-corner parser performing syntactic and semantic analysis in parallel. The parser uses application-restricted grammars and lexicons obtained from ontologies representing the application specific knowledge. It also uses the knowledge of the dialogue context to select the grammar rules related to the dialogue focus.