Advertisement

Word Disambiguation by Lexical Underspecification

  • Antonio Sanfilippo
Part of the Text, Speech and Language Technology book series (TLTB, volume 10)

Abstract

One of the central aspects of lexical knowledge is our ability to generate appropriate uses of words in context. This ability can be largely characterized in terms of classes of diatheses describing which word use alternations are possible for each choice of word form, in its context of occurrence. The deployment of such diatheses raises a basic problem of efficiency as there is no known general control regime which can deterministically restrict the choice of lexical alternations appropriate to a given context without preempting the generation of possible word uses. We present a solution to this problem where contextual information is used to guide word use extension. Lexical ambiguity is expressed by associating each ambiguous word form with an underspecified lexical type which subsumes a class of alternations describing all admissible uses of the word. Appropriate lexical usage can then be assessed deterministically by utilizing syntactic and semantic cues gathered during text processing from the local phrasal context in order to ground underspecified word entries.

Keywords

Word Form Direct Object Lexical Entry Qualia Type Thematic Role 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Asher, N. and A. Lascarides. 1995. Lexical Disambiguation in a Discourse Context. Journal of Semantics, 12: 1, pp. 69–108.CrossRefGoogle Scholar
  2. Briscoe, T., A. Copestake and B. Boguraev. 1990. Enjoy the Paper: Lexical Semantics via Lexicology. In the Proceedings of the International Conference on Computational Linguistics ‘80, Helsinki, Finland, pp. 42–7.Google Scholar
  3. Briscoe T. and A. Copestake. 1996. Controlling the application of lexical rules. In the Proceedings of SIGLEX-96. Google Scholar
  4. Carpenter, B. 1992. ALE: The Attribute Logic Engine User’s Guide. Ms, Carnagie Mellon University.Google Scholar
  5. Copestake, A. and T. Briscoe. 1991. Lexical Operations in a Unification-Based Framework. In J. Pustejovsky and S. Bergler (eds.) Logical Semantics and Knowledge Representation, Springer-Verlag.Google Scholar
  6. Hobbs, J., M. Stickel, D. Appelt and P. Martin. 1993. Interpretation as Abduction. Artificial Intelligence 63, pp. 69–142.CrossRefGoogle Scholar
  7. Levin, B. 1993. English Verb Classes and Alternations: A Preliminary Investigation. Chicago, IL: The University of Chicago Press.Google Scholar
  8. Pollard, C. and I. A. Sag. 1994. Head-Driven Phrase Structure Grammar. CSLI and The University of Chicago Press.Google Scholar
  9. Parsons, T. 1990. Events in the Semantics of English: a Study in Subatomic Semantics. Cambridge, MA: MIT Press.Google Scholar
  10. Pustejovsky, J. 1991. The Generative Lexicon. Computational Linguistics, 17(4). Pustejovsky, J. 1995. Linguistic Constraints on Type Coercion. In P. Saint-Dizier and E.Google Scholar
  11. Viegas (eds.) Computational Lexical Semantics. Cambridge, UK: Cambridge University Press.Google Scholar
  12. Pustejovsky, J. and B. Boguraev. 1993. Lexical Knowledge Representation and Natural Language Processing. Artificial Intelligence, 63.Google Scholar
  13. Sanfilippo, A. 1997. Using Semantic Similarity to Acquire Cooccurrence Restrictions from Corpora. In the Proceedings of the ACL-97 Workshop on Automatic Information Extraction and Building of Automatic Resources for NLP Applications,Madrid.Google Scholar
  14. Sanfilippo, A. 1994. Word Knowledge Acquisition, Lexicon Construction and Dictionary Compilation. In the Proceedings of the International Conference on Computational Linguistics’94,Kyoto, Japan.Google Scholar
  15. Sanfilippo, A. 1993. LKB Encoding of Lexical Knowledge. In T. Briscoe, A. Copestake and V. de Paiva (eds.) Default Inheritance within Unification-Based Approaches to the Lexicon. Cambridge, UK: Cambridge University Press.Google Scholar
  16. Sanfilippo, A. 1993 Grammatical Relations in Unification Categorial Grammar. Lingua e Stile, XXVII/2.Google Scholar
  17. Sanfilippo, A. and V. Poznanski. 1992. The Acquisition of Lexical Knowledge from Combined Machine-Readable Dictionary Sources. In the Proceedings of the 3rd Conference on Applied Natural Language Processing, Trento.Google Scholar
  18. Sanfilippo, A., K. Benkerimi and D. Dwehus. 1994. Virtual Polysemy. In the Proceedings of COLING-94,Kyoto, Japan.Google Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1999

Authors and Affiliations

  • Antonio Sanfilippo
    • 1
  1. 1.European CommissionLuxembourgGermany

Personalised recommendations