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Credit card transaction anomaly detection method and device

An anomaly detection and credit card technology, applied in data processing applications, payment systems, protocol authorization, etc., can solve problems such as the influence of noise points, and achieve the effects of reducing interference, improving accuracy, and good results

Pending Publication Date: 2019-11-22
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a method and device for abnormal detection of credit card transactions, which is used to solve the problem in the prior art that only known fraud patterns can be detected, and it is easy in the process of learning the model Problems affected by noise points in the data

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  • Credit card transaction anomaly detection method and device
  • Credit card transaction anomaly detection method and device
  • Credit card transaction anomaly detection method and device

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Embodiment Construction

[0067] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0068]It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the compon...

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Abstract

The invention discloses a credit card transaction anomaly detection method and a credit card transaction anomaly detection device. The credit card transaction anomaly detection method comprises the steps of selecting training data from transaction data through a training data selector, processing the training data through a first processor to obtain a training set, and learning the training set through a training set learner to train a classifier. According to the invention, the interference of noise points can be reduced in the iterative learning process of the model.

Description

technical field [0001] The invention relates to the technical field of electronic transaction abnormality detection, in particular to a credit card transaction abnormality detection method and device. Background technique [0002] With the rapid development of the Internet and electronic transactions, credit cards have become one of the most popular payment methods, and the problem of credit card fraud has become a problem closely related to cardholders and banks. If the problem of credit card fraud cannot be effectively solved, it will bring huge economic losses to cardholders and banks. Therefore, it is of great practical significance to study how to construct a fraud detection model. [0003] From a macro perspective, credit card fraud detection is a classification problem. Two types of fraud detection techniques currently exist: rule-based and transaction-based. Rules-based techniques rely on known fraud patterns and can only detect known fraud patterns. The technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q20/38G06Q20/40G06Q40/04G06K9/62
CPCG06Q20/382G06Q20/4016G06Q40/04G06F18/217G06F18/214
Inventor 蒋昌俊闫春钢丁志军刘关俊张亚英杨超凡
Owner TONGJI UNIV