Document (#29395)

Author

Galvez, C.
Moya-Anegón, F. de
Solana, V.H.

Title

Term conflation methods in information retrieval : non-linguistic and linguistic approaches

Source

Journal of documentation. 61(2005) no.4, S.520-547

Year

2005

Abstract

Purpose - To propose a categorization of the different conflation procedures at the two basic approaches, non-linguistic and linguistic techniques, and to justify the application of normalization methods within the framework of linguistic techniques. Design/methodology/approach - Presents a range of term conflation methods, that can be used in information retrieval. The uniterm and multiterm variants can be considered equivalent units for the purposes of automatic indexing. Stemming algorithms, segmentation rules, association measures and clustering techniques are well evaluated non-linguistic methods, and experiments with these techniques show a wide variety of results. Alternatively, the lemmatisation and the use of syntactic pattern-matching, through equivalence relations represented in finite-state transducers (FST), are emerging methods for the recognition and standardization of terms. Findings - The survey attempts to point out the positive and negative effects of the linguistic approach and its potential as a term conflation method. Originality/value - Outlines the importance of FSTs for the normalization of term variants.

Footnote

Vgl. auch unter: http://www.emeraldinsight.com/10.1108/00220410510607507

Theme

Computerlinguistik

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4. Willett, P.: Best-match text retrieval (1993) 0.16

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5. Jacquemin, C.: What is the tree that we see through the window : a linguistic approach to windowing and term variation (1996) 0.15

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