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Automatic Acquisition of Hyponyms from Large Text Corpora (1992)
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| Citations: | 1261 - 4 self |
BibTeX
@MISC{Hearst92automaticacquisition,
author = {Marti A. Hearst},
title = {Automatic Acquisition of Hyponyms from Large Text Corpora},
year = {1992}
}
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Abstract
We describe a method for the automatic acquisition of the hyponymy lexical relation from unrestricted text. Two goals motivate the approach: (i) avoidante of the need for pre-encoded knowledge and (ii) applicability across a wide range of text. We identify a set of lexico-syntactic patterns that are easily recognizable, that occur frequently and across text genre boundaries, and that indisputably indicate the lexical relation of interest. We describe a method for discovering these patterns and suggest that other lexical relations will also he acquirable iu this way. A subset of the acquisitiou algorithm is implemented and the results are used to augment and critique the structure of a large hand-built thesaurus. Extensions and applications to areas such as information retrieval are suggested.
