- The impact of named entity normalization on information retrieval for question answering
- Lecture Notes in Computer Science
- Pages (from-to)
- Document type
- Faculty of Science (FNWI)
- Informatics Institute (IVI)
In the named entity normalization task, a system identifies a canonical unambiguous referent for names like Bush or Alabama. Resolving synonymy and ambiguity of such names can benefit end-to-end information access tasks. We evaluate two entity normalization methods based on Wikipedia in the context of both passage and document retrieval for question anwering. We find that even a simple normalization method leads to improvements of early precision, both for document and passage retrieval. Moreover, better normalization results in better retrieval performance.
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- Proceedings title: Advances in information retrieval: 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March
30-April 3, 2008: Proceedings
Place of publication: Berlin
Editors: C. Macdonald, I. Ounis, V. Plachouras, I. Ruthven, R.W. White
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