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SYSTEM AND METHOD OF ANOMALY DETECTION WITH CATEGORICAL ATTRIBUTES
SYSTEM AND METHOD OF ANOMALY DETECTION WITH CATEGORICAL ATTRIBUTES
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机译:用分类属性进行异常检测的系统和方法
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摘要
A method and apparatus where the method includes detecting a plurality of events related to the activities of users within a security system wherein the events are defined by a plurality of attributes, wherein at least one attribute is categorical and wherein a data distance between events is a function of event attributes, evaluating the detected events using a a density based anomaly detection method f(r), where r is a size of a neighborhood around a data point, comparing a value of the evaluated expression with a margin threshold value (msg(r)) and setting an alarm upon detecting that the value exceeds the threshold value.
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