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Suspected transaction node set detection method and device

A node collection and node technology, applied in the field of suspicious transaction node collection detection, can solve the problems of accuracy and low efficiency, and difficulty in finding hidden abnormal trading communities

Inactive Publication Date: 2016-09-07
CHINA UNIONPAY
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Problems solved by technology

[0006] The present invention provides a method and device for detecting a collection of suspicious transaction nodes, which are used to solve the problem of low precision and low efficiency when detecting suspicious money laundering communities in the financial network in the prior art, and it is difficult to find abnormal transaction communities with better concealment technical issues

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  • Suspected transaction node set detection method and device
  • Suspected transaction node set detection method and device

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Embodiment Construction

[0099] 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. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0100] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0101] Such as figure 1 As shown, the suspicious transaction node set detection method provided by the embodiment of the present invention includes:

[0102] Step 101, determining n nodes in the financial network to be detected;

[0103] Among them, a node is a bank account;

[0104] Step 102. For a ...

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Abstract

The invention relates to the technical field of financial security, and particularly relates to a suspected transaction node set detection method and device, aiming to solve the technical problems that the accuracy and the efficiency are low and abnormal transaction communities with good concealment are difficult to be found when suspected money laundering communities in financial network are detected in the prior art. The method includes that for the n nodes in the financial network, the n nodes are divided for p times to obtain p divided sets, and a divided set with the largest divided set modularity is obtained based on the p divided sets, and the node set with the largest node set information entropy in the divided set is regarded as a suspected transaction node set. According to the method, the relevance between the nodes and the relation of the nodes in a network topology between the nodes are fully considered, so that the suspected transaction node set in the financial network can be accurately and reliably determined, and the suspected transaction node set can be a community which allows transaction.

Description

technical field [0001] The invention relates to the technical field of financial security, in particular to a method and device for detecting a set of suspicious transaction nodes. Background technique [0002] Financial network community discovery refers to the detection of those groups or sub-networks in the financial network that are closely connected internally but sparsely connected externally, forming multiple sub-communities, and mining these communities can discover hidden connections and laws in the network. Financial network community detection technology plays an important role in detecting money laundering gangs hidden in normal financial transaction networks. [0003] In the prior art, the method based on information entropy is mainly used to detect the abnormal trading community in the financial network. According to the detailed regulations of my country's large-value transaction report, analyze and identify the frequency of abnormal transactions and large-val...

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Application Information

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IPC IPC(8): G06Q20/38
CPCG06Q20/382
Inventor 钟毅邱雪涛赵金涛
Owner CHINA UNIONPAY
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