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Fuzzy Cognitive Maps (FCMs) are a causal modelling technique. FCM models contain nodes (representing the concepts to be modelled) and directed weighted edges (representing the causal relations between the concepts). Data-driven FCM learning algorithms are an objective approach with the potential to discover the causal relations that are unknown to human experts. Learning FCM from data can be a difficult...
System call trace is one of the behavior characteristics of system process. Each system call of the trace depends on several previous system calls. Using Markov model to capture such probabilistic characteristic of the system call is time consuming. Thus, we use Probabilistic Suffix Tree to extract this feature. PST is trained with the normal system call traces. We define a new measure of abnormal...
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