Calculation method of crime degree of speech data

The invention discloses a calculation method of crime degree of speech data, and belongs to the technical field of intelligent security control. The invention provides a concept of the crime degree of speech. The concept of the crime degree of speech is defined as the crime possibility which is presented by a certain ID (Identity) on a social network through the speech of the ID, and an influence model of a demand factor, an emotion factor and a preparation factor of the crime degree of speech is proposed; and a naive Bayes classifier is applied to judge the demand factor by a text analysis technical means, the emotion factor is judged by an emotion dictionary, a crime sensitive word dictionary is constructed and is combined with a machine learning method to judge the preparation factor, and a crime degree theoretical frame of the speech and a mathematic model are established. The calculation method can cause early warning to be advanced to criminal psychology formation and criminal preparation stages, can automatically analyze and predict a great quantity of data in the whole process when the calculation method is applied to a practical network, does not need human intervention and can intelligently improve a security and protection system to a higher level.