Methods and apparatus for performing an affinity based similarity search
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United States of America Patent
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Jul 1, 2003
Grant Date -
N/A
app pub date -
Mar 8, 2000
filing date -
Mar 8, 2000
priority date (Note) -
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Abstract
Methodologies are provided which use affinity lists in order to perform query retrieval more effectively and efficiently. The invention comprises a two phase method. In the first phase, we find a threshold number k of candidate documents which are retrieved by the method. In the second phase, we calculate the affinity value to each of these k documents and report them in ranked order of affinities. The first phase of finding the k most valuable candidates is accomplished using an iterative technique on the affinity lists. Once these candidates have been found, the affinity to each document in the set is obtained, and the resulting documents are rank ordered by affinity to the target document.
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