Method and system for detecting change in data streams
First Claim
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.
2 Assignments
0 Petitions
Accused Products
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.
-
Citations
31 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. A system for detecting changes in the properties of a data stream, comprising:
-
a distribution maintenance engine configured to maintain a short term distribution that models data stream and a long term distribution that models the data stream;
a determining section configured to determine a difference between the short term distribution and the long term distribution; and
an alert generation engine configured to apply a statistical measure to the difference and to generate an alert if the measure of the difference exceeds a threshold. - View Dependent Claims (28, 29, 30)
-
-
31. A system for detecting changes in the properties of a data stream, the system comprising:
-
means for maintaining a short term distribution that models the data stream;
means for maintaining a long term distribution that models the data stream;
means for determining a difference between the short term distribution and the long term distribution; and
means for applying a statistical measure to the difference and generating an alert if the measure of the difference exceeds a threshold.
-
Specification