Word Sense vs. Word Domain Disambiguation: A Maximum Entropy Approach

  • Authors:
  • Armando Suárez;Manuel Palomar

  • Affiliations:
  • -;-

  • Venue:
  • TSD '02 Proceedings of the 5th International Conference on Text, Speech and Dialogue
  • Year:
  • 2002

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Abstract

In this paper, a supervised learning system of word sense disambiguation is presented. It is based on conditional maximum entropy models. This system acquires the linguistic knowledge from an annotated corpus and this knowledge is represented in the form of features. The system were evaluated both using WordNet's senses and domains as the sets of classes of each word. Domain labels are obtained from the enrichment of WordNet with subject field codes which produces a polysemy reduction. Several types of features has been analyzed for a few words selected from the DSO corpus. Using the domain enrichment of WordNet, a 7% of accuracy improvement is achieved.