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Method and system for detecting change in data streams

  • US 20050149299A1
  • Filed: 10/22/2004
  • Published: 07/07/2005
  • Est. Priority Date: 04/24/2002
  • Status: Abandoned Application
First Claim
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1. A method of detecting changes in the properties of a data stream, comprising:

  • maintaining a short term distribution that models the data stream;

    maintaining a long term distribution that models the data stream;

    determining a difference between the short term distribution and the long term distribution; and

    applying a statistical measure to the difference and generating an alert if the measure of the difference exceeds a threshold.

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