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Account detection method and device, account detection model training method and device

A detection model and detection method technology, applied in the field of artificial intelligence, can solve problems such as damage to users' legitimate rights and interests, and achieve high accuracy

Active Publication Date: 2022-05-24
ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Recently, criminals often obtain illegal benefits by stealing other people's accounts, which damages the legitimate rights and interests of users.

Method used

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  • Account detection method and device, account detection model training method and device
  • Account detection method and device, account detection model training method and device
  • Account detection method and device, account detection model training method and device

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Embodiment Construction

[0029] Exemplary embodiments will be described in detail here, examples of which are represented in the drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar features. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present specification. Rather, they are merely examples of devices and methods consistent with some aspects of the present specification as detailed in the appended claims.

[0030] The terms used in this specification are for the purpose of describing a particular embodiment only and are not intended to limit this specification. The singular forms used in this specification and the appended claims are also intended to include most forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" as used herein refers to and comprises any or all ...

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Abstract

The embodiment of this specification provides an account detection method and device, and an account detection model training method and device. The model parameters of the unsupervised learning model are pre-trained through the first training RPC sequence, and then the model parameters are used as the initial model parameters to train the account A detection model, and finally the account security prediction is performed by the account detection model. Each RPC unit in the RPC sequence used for the unsupervised learning model training process is related. Therefore, the model parameters obtained from unsupervised training are used as initial values ​​in the account detection model training process. The trained Therefore, the account detection model can obtain higher accuracy in the process of account security prediction.

Description

Technical field [0001] This specification covers the field of artificial intelligence technology, especially the account detection methods and devices, the training methods and devices of the account detection model. Background [0002] Recently, there are often criminals who obtain illegal benefits by stealing other people's accounts, so that the legitimate rights and interests of users are damaged. Therefore, in order to ensure the security of the account and safeguard the legitimate rights and interests of users, it is necessary to test the security of the account. Contents of the Invention [0003] Based on this, embodiments of the present specification provide account detection methods and apparatus, training methods and apparatus of account detection models. [0004] According to the first aspect of the embodiment of the present specification, there is provided an account detection method, the method comprising: [0005] Obtain the RPC sequence of the account to be detecte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/54G06N3/04G06N3/08G06N20/10
CPCG06F9/547G06N3/088G06N20/10G06N3/044G06N3/045
Inventor 曹绍升崔卿
Owner ALIPAY (HANGZHOU) INFORMATION TECH CO LTD