Adaptive junk message filtering system
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United States of America Patent
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Jul 24, 2007
Grant Date -
Aug 26, 2004
app pub date -
Feb 25, 2003
filing date -
Feb 25, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a system for filtering messages--the system includes a seed filter having associated therewith a false positive rate and a false negative rate. A new filter is also provided for filtering the messages, the new filter is evaluated according to the false positive rate and the false negative rate of the seed filter, the data used to determine the false positive rate and the false negative rate of the seed filter are utilized to determine a new false positive rate and a new false negative rate of the new filter as a function of threshold. The new filter is employed in lieu of the seed filter if a threshold exists for the new filter such that the new false positive rate and new false negative rate are together considered better than the false positive and the false negative rate of the seed filter.
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