Nonparametric method for determination of anomalous event...

Details Nonparametric method for determination of anomalous event... Nonparametric method for determination of anomalous event...

2011-01-11

2011-01-11

Nghiem, Michael P (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Quality evaluation

C340S679000

Reexamination Certificate

active

07869967

ABSTRACT:
According to a feature of the present disclosure, a method is provided for the determination of anomalous events in complex systems, such as problems, inefficiencies, and failures, and a tool is provided for the detection of these events. Many complex systems are non-stationary or experience periodic fluctuations or spikes in values that are outside of normal ranges, but constitute normal behavior nevertheless. The method accounts for both non-stationarity, as well as fluctuations and spikes. Additional novel features include both a threshold setting initialization method and a regression method for the determination of the start points and end points of events.

REFERENCES:
Cardenas et al., Distributed Change Detection for Worms, DDoS and Other Network Attacks, Jun. 30-Jul. 2, 2004, Proceeding of the 2004 American Control Conference, Boston, Massachusetts, pp. 1008-1013.

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