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Article . 2002
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Desambiguación léxica mediante marcas de especificidad

Authors: Andrés Montoyo;

Desambiguación léxica mediante marcas de especificidad

Abstract

This thesis presents a method for the automatic disambiguating of nouns, using the notion of Specification Marks and employing the noun taxonomy of the WordNet lexical knowledge base. The method resolves the lexical ambiguity of nouns in any sort of text, and although it relies on the semantic relations (Hypernymy and Hyponymy) and the hierarchic organization of WordNet, it does not, however, require any sort of training process, no hand-coding of lexical entries, nor the hand-tagging of texts. Besides, this thesis presents a new method to enrich semantically WordNet with categories from general domain classification systems. The method is performed in two consecutive steps. First, a lexical knowledge word sense disambiguation process. Second, a set of rules to select the main concepts as representatives of each category. The method has been applied to label automatically WordNet synsets with Subject Codes from a standard news agencies classification system.

Esta tesis presenta un método para resolver la ambigüedad léxica pura (semántica) en textos de dominios no registrados en cualquier lengua que tenga un repositorio de sentidos organizado como una base de conocimiento léxica. A este método de resolución de la ambigüedad léxica pura propuesto se denomina Método de Marcas de Especificidad y se basa en el uso de conocimiento lingüístico (información léxica y morfológica) y de conocimiento a partir de las relaciones léxicas y semánticas de la taxonomía de nombres de la base de conocimiento léxica WordNet. Además, se presenta la aplicación del método de Marcas de Especificidad con el objetivo de enriquecer semánticamente WordNet con etiquetas de dominio o categorías de otros sistemas de clasificación.

Esta investigación ha sido parcialmente financiada por el Ministerio de Ciencia y Tecnología a través del proyecto TIC2000-0664-C02-01/02.

Directores de la tesis: Manuel Palomar Sanz (Universidad de Alicante) y German Rigau Claramunt (Universitat Politècnica de Catalunya)

Keywords

WordNet, WordNet enrichment, Lexical ambiguity, Word sense disambiguation, Enriquecimiento de WordNet semánticamente, Classification systems, Ambigüedad léxica, Sistemas de clasificación

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green