Criminal case joint investigation intelligent analysis method

Abstract

The invention provides an intelligent analysis approach for accurately and efficiently searching the consolidated text and the image of a criminal case strand. The approach includes the steps that the image of a database and the data information of a text are distilled to form a multidimensional vector feature of each case; an operational formula is defined for continuous data and discrete symbolic data to perform uniform treatment and calculation; the multidimensional vector is endowed with different weights; a rough and reduced technology is adopted, the multidimensional vector feature of each case is performed with the dimensionality reduction; the similarity of the case to be analyzed and each case of the database with a reduced vector is calculated, a serial parallel case which is relevant to the case to be analyzed in the database is found out. The adoption of the invention can combine the experience and the knowledge of an analyst to perform an agile and flexible search and survey interactively, provide the more accurate information of the serial parallel case for the crime-solving personal and improve the crime-solving efficiency.

Description

technical field [0001] The invention relates to an intelligent analysis method for serial and parallel cases of criminal cases. Background technique [0002] Investigators of criminal cases will collect a large amount of information from the scene of the case and store this information in the computer system, such as footprint photos, on-site photos, feature descriptions of on-site objects, descriptions of crime locations, and so on. These information formats are diverse, including discrete numbers and symbols, text information, and image information. In view of the current characteristics of crimes committed in different places, series of crimes, and continuous crimes, criminal case intelligence analysts need to conduct complex searches and comparisons of cases that have occurred in the computer system according to the characteristics of the current case, in order to find out which cases may be caused by the same person or gangs, thus providing a large amount of evidence a...

AI Technical Summary

Problems solved by technology

The efficiency of this method is extremely low. As the workload and fatigue of analysts increase, the accuracy of manual analysis is also greatly reduced, which in turn affects the speed and efficiency of solving cases.

Although it is not uncommon to collect image features and classify text separately, due to the diverse characteristics of the data collected at the scene of the case, it includes both text data and image data, both discrete data and continuous data. In addition, serial and parallel The methods of case analysts are complex and diverse, and a form of combination of information is required to complete the analysis of serial and parallel cases. It is difficult to apply the currently known image retrieval technology or text retrieval technology to computer-aided analysis of serial and parallel cases in criminal cases. system, which cannot meet the requirements of efficiency and accuracy for series-parallel case analysis

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