The objective of this paper is to present an application of learning algorithms to the detection of anomalies in SOA system. As it was not possible to inject errors into the "real" SOA system and to analyze the effect of these errors, a special model of SOA system was designed and implemented. In this system several anomalies were introduced and the effectiveness of algorithms in detecting them were measured. The results of experiments can be used to select efficient algorithm for anomaly detection. Two algorithms: K-means clustering and Kohonen networks were used to detect the unused functionalities and the results of this experiment are discussed.
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