Paper: Semantic-Head Based Resolution of Scopal Ambiguities

ACL ID P98-1072
Title Semantic-Head Based Resolution of Scopal Ambiguities
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 1998
  • Björn Gambäck (Swedish Institute of Computer Science, Stockholm Sweden; Helsinki University, Helsinki Finland)
  • Johan Bos (Saarland University, Saarbrucken Germany)

We introduce an algorithm for scope resolution in underspecified semantic representations. Scope pref- erences are suggested on the basis of semantic argu- ment structure. The major novelty of this approach is that, while maintaining an (scopally) underspec- ified semantic representation, we at the same time suggest a resolution possibility. The algorithm has been implemented and tested in a large-scale system and fared quite well: 28% of the utterances were ambiguous, 80% of these were correctly interpreted, leaving errors in only 5.7% of the utterance set.