Phrase-based detection of duplicate documents in an information retrieval system
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United States of America Patent
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Jan 31, 2012
Grant Date -
Jun 24, 2010
app pub date -
Mar 4, 2010
filing date -
Jul 26, 2004
priority date (Note) -
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Abstract
An information retrieval system uses phrases to index, retrieve, organize and describe documents. Phrases are identified that predict the presence of other phrases in documents. Documents are the indexed according to their included phrases. Related phrases and phrase extensions are also identified. Phrases in a query are identified and used to retrieve and rank documents. Phrases are also used to cluster documents in the search results, create document descriptions, and eliminate duplicate documents from the search results, and from the index.
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