Anomaly Detection Using Real-Valued Negative Selection

Genetic Programming and Evolvable Machines - Tập 4 - Trang 383-403 - 2003
Fabio A. González1,2, Dipankar Dasgupta1
1Division of Computer Science, The University of Memphis, Memphis
2Departamento de Ingeniería de Sistemas, Universidad Nacional de Colombia, Colombia

Tóm tắt

This paper describes a real-valued representation for the negative selection algorithm and its applications to anomaly detection. In many anomaly detection applications, only positive (normal) samples are available for training purpose. However, conventional classification algorithms need samples for all classes (e.g. normal and abnormal) during the training phase. This approach uses only normal samples to generate abnormal samples, which are used as input to a classification algorithm. This hybrid approach is compared against an anomaly detection technique that uses self-organizing maps to cluster the normal data sets (samples). Experiments are performed with different data sets and some results are reported.

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