Criminal suspicion probability prediction method and system

A technology of probability prediction and suspicion, which is applied in the field of probability prediction of crime suspects, can solve the problems such as the inability to give the probability of crime type and the lack of assistance in the daily work of the police, and achieve the accuracy of crime type and crime probability, crime type and crime probability has the effect

CN105678428AInactive Publication Date: 2016-06-15WENZHOU POLYTECHNIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-06-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a criminal suspicion probability prediction method, and the method comprises the steps: obtaining the related information of a to-be-detected person, determining the corresponding criminal record types of the to-be-detected person according to the related information, and also determining the related historical data screened through a specified index corresponding to each criminal record type; determining the detection time, and carrying out the numerical value assignment of the specified indexes of all criminal record types according to the related historical data; setting a characteristic vector which is formed by all the specified indexes, and obtaining the training sample library of each criminal record type according to the characteristic vector and the values of all specified indexes; enabling the classification attribute of the training sample library of each criminal record type to be divided into 1 and 0, carrying out the fitting of the classification probability of the classification attribute (1) in the training sample library corresponding to each criminal record type through employing a logistic regression model, and obtaining the crime probability of all criminal record types of the to-be-detected person. According to the invention, the method can accurately detect the crime type and probability of the to-be-detected person, and provides onsite guide for public security officers to carry out key inspection.
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Description

technical field

[0001] The invention relates to the technical field of public security crime prediction, in particular to a method and system for predicting the probability of criminal suspicion. Background technique

[0002] At present, our country is in the critical period of the in-depth development of public security informatization and "information-led policing". In the entire "information-led policing" working mode, the analysis and judgment of criminal intelligence is the core, and crime prediction is the most important. The most important. Usually, the research on crime prediction mainly adopts empirical methods, and through investigation, data collection, analysis, and induction, important relevant factors are obtained, thereby revealing the law of crime occurrence.

[0003] In the existing technology, domestic crime prediction mainly adopts mathematical analysis methods, including regression analysis, gray system theory analysis and optimal combination analysis, e...

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0045] like figure 1 As shown, a method for predicting the probability of criminal suspicion provided by an embodiment of the present invention, the method includes:

[0046]Step S1, obtain the relevant information of the person to be tested, and according to the obtained relevant information of the person to be tested, determine the type of criminal record corresponding to the person to be tested from the preset information base, and determine the type of criminal record corresponding to the person to be tested by each type of criminal record Relevant historical data filtered out corresponding to specified indicators;

[0047] The specific process is that during the key investigation process of the public security officers, the ID card of the person to be tested...