![]() ![]() Introduction to WordNet: an on-line lexical database. Miller GA, Beckwith R, Fellbaum C, Gross D, Miller KJ. Edinburgh: Edinburgh University Press 2001. Explorations in automatic thesaurus discovery. ![]() Information retrieval: data structures & algorithms, Chapters III, VII, and IX. Cambridge, MA: MIT Press 1998.įrakes WB, Baeza-Yates R. On the use of regular expressions for searching text. Word association norms: mutual information and lexicography. In: Proceedings of the 23rd Annual Meeting of the Association for Computation Linguistics, Illinois, USA. Extracting semantic hierarchies from a large on-line dictionary. Automatic thesaurus generation for an electronic community system. This process is experimental and the keywords may be updated as the learning algorithm improves.Ĭhen H, Schatz B, Yim T, Fye D. These keywords were added by machine and not by the authors. Operations on the characters within words is the concern of morphology. ![]() Here, the term lexical analysis is used to refer only to operations performed on complete words or word groups. Lookup entails finding any entries whose entry term matches the lexical term in question. A lexicon consists of a collection of entries, each of which comprises an entry term and a meaning structure. The characteristic operation in using a lexicon is a lookup, where the input is a lexical term, and the output is a representation of one or more associated meanings. The association of meaning with lexical terms involves a data structure known generically as a lexicon. These lexical terms are typically obtained from texts (whether natural or artificial) by a process called term extraction. Lexical analysis refers to the association of meaning with explicitly specified textual strings, referred to here as lexical terms.
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