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Calculation method of crime degree of speech data

A calculation method and speech technology, applied in the field of online speech data suspected crime calculation, which can solve problems such as difficulty in finding theoretical or mathematical model definitions and calculating crime events.

Active Publication Date: 2015-12-09
JILIN UNIV
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Problems solved by technology

However, there is very little research in this direction both internationally and domestically, and it is even more difficult to find a theoretical or mathematical model to define and calculate the possibility of criminal events

Method used

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  • Calculation method of crime degree of speech data
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  • Calculation method of crime degree of speech data

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Embodiment Construction

[0057] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings, so that those skilled in the art can better understand the present invention.

[0058] 1. Naive Bayes classifier text data training

[0059] figure 1 It is a screenshot of part of the training data used by the Naive Bayesian classifier to generate the prediction function. There are a total of 200 speech data for training, of which 50 have the semantics of speech unsatisfied, marked as 1. 150 have no speech unsatisfied Semantics, marked as 0. Speech data first undergoes word segmentation (Java-based apache sub-project Lucene combined with IKAnalyzer is used for word segmentation), and the preprocessing of stop words and punctuation is removed. The data is divided into a string field and a class field. The data in the string field is the preprocessed text, and the class field stores the annotation of the text. figure 2 A partial screenshot of the likeli...

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Abstract

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.

Description

technical field [0001] The invention belongs to the field of intelligent security technology, and specifically relates to a theory of crime degree of network speech based on criminal psychology and text analysis, and a method for calculating suspected crime degree of network speech data based on the theory. Background technique [0002] The main connotation of intelligent security technology is the informatization of its related content and services, the transmission and storage of images, the storage and processing of data, and so on. As far as intelligent security is concerned, a complete intelligent security system mainly includes three parts: access control, alarm and monitoring. At present, the country is vigorously developing the security system and applying it to the actual security field, which has greatly improved the detection efficiency of criminal incidents and provided a guarantee for the country to comprehensively monitor the situation in various regions. At t...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/3344G06F16/35
Inventor 王世刚胡云鹏赵文婷卢洋赵岩
Owner JILIN UNIV
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