Word sense disambiguation and text segmentation based on lexical cohesion

Authors:
Okumura Manabu;Honda Takeo
Affiliations:
Japan Advanced Institute of Science and Technology, Ishikawa, Japan;Japan Advanced Institute of Science and Technology, Ishikawa, Japan
Venue:
COLING '94 Proceedings of the 15th conference on Computational linguistics - Volume 2
Year:
1994

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Abstract

In this paper, we describe how word sense ambiguity can be resolved with the aid of lexical cohesion. By checking lexical cohesion between the current word and lexical chains in the order of the salience, in tandem with generation of lexical chains, we realize incremental word sense disambiguation based on contextual information that lexical chains, reveal. Next, we describe how segment boundaries of a text can be determined with the aid of lexical cohesion. We can measure the plausibility of each point in the text as a segment boundary by computing a degree of agreement of the start and end points of lexical chains.