Distinguishing Word Senses in Untagged Text

Details Distinguishing Word Senses in Untagged Text Distinguishing Word Senses in Untagged Text

1997-06-09

arxiv.org/abs/cmp-lg/9706008v1

Appears in the Proceedings of the Second Conference on Empirical Methods in NLP (EMNLP-2), August 1-2, 1997, Providence, RI

Computer Science

Computation and Language

11 pages, latex, uses aclap.sty

Scientific paper

This paper describes an experimental comparison of three unsupervised learning algorithms that distinguish the sense of an ambiguous word in untagged text. The methods described in this paper, McQuitty's similarity analysis, Ward's minimum-variance method, and the EM algorithm, assign each instance of an ambiguous word to a known sense definition based solely on the values of automatically identifiable features in text. These methods and feature sets are found to be more successful in disambiguating nouns rather than adjectives or verbs. Overall, the most accurate of these procedures is McQuitty's similarity analysis in combination with a high dimensional feature set.

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