Method and system for detecting change in data streams
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United States of America Patent
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Nov 17, 2009
Grant Date -
May 24, 2007
app pub date -
Jan 18, 2007
filing date -
Apr 24, 2002
priority date (Note) -
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Abstract
A system for detecting change in a data stream comprising a distribution maintenance engine, a difference determining means and an alert generation engine is disclosed. The system detects change in the alert stream by the distribution maintenance engine maintaining a short term distribution that models the data stream and maintaining a long term distribution that models the data stream. The difference determining means determines the difference between the short term distribution and the long term distribution. The alert generation engine applies a statistical measure to the difference and generates an alert if the measure of the difference exceeds a threshold.
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