Trusted fraud detection method, system, medium and terminal for financial transactions
A technology of financial transactions and detection methods, applied in finance, data processing applications, instruments, etc., can solve problems such as the credibility of modeling methods and the inability to meet the requirements of high-quality fraud detection, and meet the needs of high-quality fraud detection , the effect of ensuring credibility
Active Publication Date: 2022-08-09
TONGJI UNIV
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[0007] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a credible fraud detection method, system, medium and terminal for financial transactions, which are used to solve the credibility problem existing in the existing individual behavior modeling methods, which cannot Problems meeting high-quality fraud detection requirements
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[0049] The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other under the condition of no conflict.
[0050] It should be noted that the diagrams provided in the following embodiments are only used to illustrate the basic concept of the present invention in a schematic way, so the diagrams only show the components related to the present invention rather than the number, shape and For dimension ...
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The invention provides a credible fraud detection method, system, medium and terminal for financial transactions; the method includes the following steps: constructing a credible individual behavior portrait frame; describing the preference mode of a virtual user based on the credible individual behavior portrait frame, to Build a trusted individual behavior model; perform fraud detection on a financial transaction to be detected according to the trusted individual behavior model; the invention discloses a trusted individual behavior modeling method, which splits the trusted individual behavior modeling problem It consists of two steps, namely, constructing a credible individual behavior portrait framework and framework implementation. By defining credible transaction descriptions, individual credibility constraints, co-occurrence mapping, and designing credible recommendation algorithms, it ensures the integrity of individual behavior models. reliability, which provides a new idea for the modeling of trusted individual behavior in the field of financial fraud detection, and meets the needs of high-quality fraud detection.
Description
technical field [0001] The invention relates to the technical field of Internet financial fraud detection, in particular to a method, system, medium and terminal for trusted fraud detection of financial transactions. Background technique [0002] Anomaly detection is the main method of financial fraud detection. It relies on the effective characterization of the behavior patterns behind transactions. Behavior models can be divided into two categories: group behavior models and individual behavior models. Among them, group behavior models are coarse-grained behavior models. , it can effectively use the common information of the group, but cannot reflect the differences between individuals; although the individual behavior model can describe more fine-grained behavior patterns, it cannot reflect the commonality between individuals, resulting in an inaccurate model, especially In the field of financial fraud detection, individual historical data is often scarce, which further e...
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IPC IPC(8): G06F30/27G06Q10/06G06Q40/04G06Q40/08
CPCG06F30/27G06Q10/06393G06Q40/04G06Q40/08
Inventor 蒋昌俊闫春钢丁志军王成张亚英崔纪鹏
Owner TONGJI UNIV