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Determining the Characteristic Vocabulary for a Specialized Dictionary using Word2vec and a Directed Crawler

lib:62903deb5cca4c21 (v1.0.0)

Authors: Gregory Grefenstette,Lawrence Muchemi
ArXiv: 1605.09564
Document:  PDF  DOI 
Abstract URL: http://arxiv.org/abs/1605.09564v1

Specialized dictionaries are used to understand concepts in specific domains, especially where those concepts are not part of the general vocabulary, or having meanings that differ from ordinary languages. The first step in creating a specialized dictionary involves detecting the characteristic vocabulary of the domain in question. Classical methods for detecting this vocabulary involve gathering a domain corpus, calculating statistics on the terms found there, and then comparing these statistics to a background or general language corpus. Terms which are found significantly more often in the specialized corpus than in the background corpus are candidates for the characteristic vocabulary of the domain. Here we present two tools, a directed crawler, and a distributional semantics package, that can be used together, circumventing the need of a background corpus. Both tools are available on the web.

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