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19 juin 2012
- handle: 10670/1.8jpkqo
- hal: hal-00924997
info:eu-repo/semantics/OpenAccess
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Pattern-based relation extraction lexico-syntactic patterns semantic relation tool comparison pattern variationSujets proches
Language (New words, slang, etc.) Pattern Model Relations--Foreign countries Relations (Canon law)Citer ce document
Nathalie Aussenac-Gilles et al., « Variation and Semantic Relation Interpretation: Linguistic and Processing Issues », HAL-SHS : linguistique, ID : 10670/1.8jpkqo
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Résumé
Studies in linguistics define lexico-syntactic patterns to characterize the linguistic utterances that can be interpreted with semantic relations. Because patterns are assumed to reflect linguistic regularities that have a stable interpretation, several software implement such patterns to extract semantic relations from text. Nevertheless, a thorough analysis of pattern occurrences in various corpora proved that variation may affect their interpretation. In this paper, we report the linguistic variations that impact relation interpretation in language, and may lead to errors in relation extraction systems. We analyze several features of state-of-the-art pattern-based relation extraction tools, mostly how patterns are represented and matched with text, and discuss their role in the tool ability to manage variation.