More than One Sense Per Discourse
نویسنده
چکیده
Previous research has indicated that when a polysemous word appears two or more times in a discourse, it is extremely likely that they will all share the same sense [Gale et al. 92]. However, those results were based on a coarse-grained distinction between senses (e.g, sentence in the sense of a ‘prison sentence’ vs. a ‘grammatical sentence’). We report on an analysis of multiple senses within two sense-tagged corpora, Semcor and DSO. These corpora used WordNet for their sense inventory. We found significantly more occurrences of multiple-senses per discourse than reported in [Gale et al. 92] (33% instead of 4%). We also found classes of ambiguous words in which as many as 45% of the senses in the class co-occur within a document. We discuss the implications of these results for the task of word-sense tagging and for the way in which senses should be represented.
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