A context-sensitive model for probabilistic LR parsing of spoken language with transformation-based postprocessing

  • Authors:
  • Tobias Ruland

  • Affiliations:
  • Siemens AG, München

  • Venue:
  • COLING '00 Proceedings of the 18th conference on Computational linguistics - Volume 2
  • Year:
  • 2000

Quantified Score

Hi-index 0.00

Visualization

Abstract

This paper describes a hybrid approach to spontaneous speech parsing. The implemented parser uses an extended probabilistic LR parsing model with rich context and and its output is post-processed by a symbolic tree transformation routine that tries to eliminate systematic errors of the parser. The parser has been trained for three different languages and was successfully integrated in the Verbmobil speech-to-speech translation system. The parser achieves more than 90%/90% labeled precision/recall on parsed Verbmobil utterances while 3% of German and 5% of all English input cannot be parsed.