Robust parsing with weighted constraints

  • Authors:
  • Kilian Foth;Wolfgang Menzel;Ingo Schröder

  • Affiliations:
  • Fachbereich Informatik, Universität Hamburg, Vogt-Kölln-Strasse 30, D-22527 Hamburg, Germany e-mail: menzel@informatik.uni-hamburg.de;Fachbereich Informatik, Universität Hamburg, Vogt-Kölln-Strasse 30, D-22527 Hamburg, Germany e-mail: menzel@informatik.uni-hamburg.de;Fachbereich Informatik, Universität Hamburg, Vogt-Kölln-Strasse 30, D-22527 Hamburg, Germany e-mail: menzel@informatik.uni-hamburg.de

  • Venue:
  • Natural Language Engineering
  • Year:
  • 2005

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Abstract

Based on constraint optimization techniques, an architecture for robust parsing of natural language utterances has been developed. The resulting system is able to combine possibly contradicting evidence from a variety of information sources, using a plausibility-based arbitration procedure to derive fairly rich structural representations, comprising aspects of syntax, semantics and other description levels of language. The results of a series of experiments are reported which demonstrate the high potential for robust behaviour with respect to ungrammaticality, incomplete utterances, and temporal pressure.