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Automatic processing of multilingual medical terminology: applications to thesaurus enrichment and cross-language information retrieval.

Abstract：

OBJECTIVES:We present in this article experiments on multi-language information extraction and access in the medical domain. For such applications, multilingual terminology plays a crucial role when working on specialized languages and specific domains. MATERIAL AND METHODS:We propose firstly a method for enriching multilingual thesauri which extracts new terms from parallel corpora, and secondly, a new approach for bilingual lexicon extraction from comparable corpora, which uses a bilingual thesaurus as a pivot. We illustrate their use in multi-language information retrieval (English/German) in the medical domains. RESULTS:Our experiments show that these automatically extracted bilingual lexicons are accurate enough (85% precision for term extraction) for semi-automatically enriching mono- or bi-lingual thesauri such as the universal medical language system, and that their use in cross-language information retrieval significantly improves the retrieval performance (from 22 to 40% average precision) and clearly outperforms existing bilingual lexicon resources (both general lexicons and specialized ones). CONCLUSION:We show in this paper first that bilingual lexicon extraction from parallel corpora in the medical domain could lead to accurate, specialized lexicons, which can be used to help enrich existing thesauri and second that bilingual lexicons extracted from comparable corpora outperform general bilingual resources for cross-language information retrieval.

journal_name

Artif Intell Med

journal_title

Artificial intelligence in medicine

authors

Déjean H,Gaussier E,Renders JM,Sadat F

doi

10.1016/j.artmed.2004.07.015

subject

Has Abstract

pub_date

2005-02-01 00:00:00

pages

111-24

issue

2

eissn

0933-3657

issn

1873-2860

pii

S0933-3657(04)00129-0

journal_volume

33

pub_type

杂志文章

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