Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Anna Lynn Patterson0
Date of Patent
April 20, 2010
Patent Application Number
11043438
Date Filed
January 25, 2005
Patent Citations Received
Patent Primary Examiner
Patent 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. Index data for multiple versions or instances of documents is also maintained. Each document instance is associated with a date range and relevance data derived from the document for the date range.
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