Polysemy
Theoretical and Computational Approaches
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A termék adatai:
- Kiadó OUP Oxford
- Megjelenés dátuma 2001. november 8.
- ISBN 9780199250868
- Kötéstípus Puhakötés
- Terjedelem240 oldal
- Méret 234x157x14 mm
- Súly 354 g
- Nyelv angol
- Illusztrációk 11 figures; 11 tables 0
Kategóriák
Rövid leírás:
Polysemy is a term used in semantic and lexical analysis to describe a word with multiple meanings. The problem is to establish whether it's the same word with related meanings or different words that happen to look or sound the same. Such words present few difficulties in everyday language, but pose near-intractable problems for linguists and lexicographers. The contributors, including Anna Wierzbicka, Charles Fillmore, and James Pustejovsky, consider the implications of these problems for grammatical theory and how they may be addressed in computational linguistics.
TöbbHosszú leírás:
This volume of newly commissioned essays examines current theoretical and computational work on polysemy, the term used in semantic analysis to describe words with more than one meaning. Such words present few difficulties in everyday language, but pose central problems for linguists and lexicographers, especially for those involved in lexical semantics and in computational modelling. The contributors to this book -- leading researchers in theoretical and computational linguistics -- consider the implications of these problems for linguistic theory and how they may be addressed by computational means.
The theoretical essays in the book examine polysemy as an aspect of a broader theory of word meaning. Three theoretical approaches are presented: the Classical (or Aristotelian), the Prototypical, and the Relational. Their authors describe the nature of polysemy, the criteria for detecting it, and its manifestations across languages. They examine the issues arising from the regularity of polysemy and the theoretical principles proposed to account for the interaction of lexical meaning with the semantics and syntax of the context in which it occurs. Finally they consider the formal representations of meaning in the lexicon, and their implications for dictionary construction.
The computational essays are concerned with the challenge of polysemy to automatic sense disambiguation -- how the intended meaning for a word occurrence can be identified. The approaches presented include the exploitation of lexical information in machine-readable dictionaries, machine learning based on patterns of word co-occurrence, and hybrid approaches that combine the two.
As a whole the volume shows how on the one hand theoretical work provides the motivation and may suggest the basis for computational algorithms, while on the other computational results may validate, or reveal problems in, the principles set forth by theories.
This volume distinguishes itself by its very catholic table of contents ... the chapters themselves stand as valuable contributions to the debate about what polysemy is and how it is to be represented in (psycho)linguistic and computational models.
Tartalomjegyzék:
Polysemy: An overview
Aspects of the Micro-Structure of Word Meanings
Autotroponomy
Lexical Shadowing and Argument Closure
Describing Polysemy: The case of 'Crawl'
'The Garden Swarms with Bees' and the Fallacy of 'Argument Alternation'
Polysemy: A problem of definition
Lexical Representations for Sentence Processing
Large Vocabulary Word Sense Disambiguation
Polysemy in a Broad-Coverage Natural Language Processing System
Disambiguation and Connectionism
