Information retrieval system
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United States of America Patent
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Jun 11, 2002
Grant Date -
N/A
app pub date -
Jul 31, 1998
filing date -
Jul 31, 1998
priority date (Note) -
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Abstract
Methods and systems for providing an improved IR system that performs information retrieval by using probabilities. When performing information retrieval, the improved IR system utilizes both the prior probability that a document is relevant independent of the query as well as the probability that the query was generated by a particular document given that the particular document is relevant. By using these probabilities, the improved IR system retrieves documents in a more accurate manner than conventional systems which are based on an ad hoc approach.
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