Method and system for detecting change in data streams

Details Method and system for detecting change in data streams Method and system for detecting change in data streams

2007-01-18

2009-11-17

Rodriguez, Paul L (Department: 2123)

Data processing: structural design, modeling, simulation, and em

Modeling by mathematical expression

C702S183000

Reexamination Certificate

active

07620533

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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