Suspicious feature discovery method based on transaction network nodes

A technology for trading networks, discovery methods, applied in the field of suspicious feature discovery

Pending Publication Date: 2019-07-16
上海诺悦智能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Suspicious feature discovery method based on transaction network nodes
  • Suspicious feature discovery method based on transaction network nodes
  • Suspicious feature discovery method based on transaction network nodes

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Embodiment Construction

[0048] figure 1 A schematic flowchart of a suspicious feature discovery method 200 based on trading network nodes proposed according to the present invention is shown. As shown in the figure, the method 200 may include the following steps: constructing a user transaction network 201 based on original transaction characteristics; obtaining key nodes 202 from each user transaction network constructed; Extract and form a transaction feature set 203 ; perform association rule mining on the transaction feature set of each key node and obtain a frequent transaction feature set 204 .

[0049] The method 200 for discovering suspicious features based on trading network nodes according to the present invention will be further explained in detail in conjunction with a specific embodiment.

[0050] In this embodiment, the original transaction data is first obtained, wherein the original transaction data includes original transaction characteristics, such as time, amount, transaction loca...

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Abstract

The invention relates to a suspicious feature discovery method (200) based on transaction network nodes. The suspicious feature discovery method comprises the following steps: constructing a user transaction network (201) based on original transaction features; obtaining key nodes (202) from the constructed user transaction network; for each key node, performing transaction feature extraction on each transaction and forming a transaction feature set (203); performing association rule mining on the transaction feature set of each key node and aquring a transaction feature frequent set (204).

Description

technical field [0001] The invention relates to a suspicious feature discovery method based on transaction network nodes. Background technique [0002] At present, in the existing technology, most of the suspicious transaction screenings that exist are manually screened for transaction-related features. The feature dimensions only include a few features such as time and money, and usually do not consider the relationship between various features. Interrelated. [0003] In addition, there are methods based on network discovery in the prior art, and these methods are mainly used to discover the interpersonal relationship between nodes, but do not reflect the important characteristics of the network. [0004] Document CN201410085416 discloses a method and device for mining social relationships based on financial data, in which a financial transaction network is constructed through financial transaction data and the network topology attributes of client users and non-network to...

Claims

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Application Information

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IPC IPC(8): G06F16/22G06Q40/04
CPCG06Q40/04G06F16/2237
Inventor 严武庞子龙王子剑陈龙曹磊
Owner 上海诺悦智能科技有限公司
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