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FLAIRS
2001

Automatic Discovery of Linguistic Patterns for Information Extraction

8 years 11 months ago
Automatic Discovery of Linguistic Patterns for Information Extraction
InformationExtraction (IE) systemstypically rely onextraction patterns encoding domain-specific knowledge. Whenmatched against natural languagetexts, these patterns recognize with high accuracy information relevant to the extraction task. Adapting an IE system to a newextraction scenarioentails devising a newcollection of extraction patterns - a time-consumingand expensive process. To overcomethis obstacle, wehave implemented in CICERO,our IE system, a pattern acquisition mechanismthat combineslexicosemantic knowledgeavailable from WordNetwith syntactic informationcollected fromtraining corpora. Theopen-domainnature of the knowledge encodedin WordNetgrants portability of our approach across multiple extraction domains.
Sanda M. Harabagiu, Mihai Surdeanu, Paul Morarescu
Added 31 Oct 2010
Updated 31 Oct 2010
Type Conference
Year 2001
Where FLAIRS
Authors Sanda M. Harabagiu, Mihai Surdeanu, Paul Morarescu
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