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COLING
2000

Automatic Acquisition of Domain Knowledge for Information Extraction

8 years 10 months ago
Automatic Acquisition of Domain Knowledge for Information Extraction
In developing an Infbrmation Extraction tIE) system tbr a new class of events or relations, one of the major tasks is identifying the many ways in which these events or relations may be expressed in text. This has generally involved the manual analysis and, in some cases, the annotation of large quantities of text involving these events. This paper presents an alternative approach, based on an automatic discovery procedure, ExDIsCO, which identifies a set; of relewmt documents and a set of event patterns from un-annotated text, starting from a small set of "seed patterns." We evaluate ExDIScO by comparing the pertbrmance of discovered patterns against that of manually constructed systems on actual extraction tasks.
Roman Yangarber, Ralph Grishman, Pasi Tapanainen,
Added 01 Nov 2010
Updated 01 Nov 2010
Type Conference
Year 2000
Where COLING
Authors Roman Yangarber, Ralph Grishman, Pasi Tapanainen, Silja Huttunen
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