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This paper proposes a semantic-block-based hidden Markov model. Semantic block is segmented from the elicited information of various websites based on their characteristic of semi-structure. The model adopts semantic block as the basic element in an observation sequence, replacing the original element — word, in order to improve the accuracy and efficiency of the transition matrix. Also, it optimizes...
Widespread information technique use has led to the emergence of email networks large-scale applications networks in cyberspace. But the traditional spam solutions for anti-spam are mostly static methods, and the means of adaptive and real time analyses the mail are seldom considered. Inspired by the theory of artificial immune systems (AIS), a novel distributed anti-spam model that leverages e-mail...
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