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Website user identification method and device

A website and user technology, applied in the direction of website content management, network data retrieval, data processing applications, etc., can solve problems such as heavy workload, accuracy rate limitation, and slow server processing speed, so as to improve processing speed and save workload Effect

Active Publication Date: 2014-07-16
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the process of realizing the present invention, the inventors of the present invention have discovered that there are at least the following problems in the prior art: although identifying website users by using a set of accounts associated with the same user ID is wider than identifying website users by using accounts , the accuracy rate is high, however, due to the high vigilance of dangerous website users, sometimes all the accounts they use may not share the same user ID, for example, when website users use different computers to register multiple accounts on the website , these accounts will be associated with different IP addresses
Therefore, it is impossible to fully identify a dangerous website user by using the user identification associated with the account that has been established as a fraudulent fact, and the accuracy of identification is also limited to a certain extent.
Moreover, when using the above-mentioned association relationship to determine the account group, it is necessary to search for the account set associated with the same user ID among all the accounts and user IDs. Since the number of accounts and user IDs is very large, the server performs the above search. The workload is also very huge, so the processing speed of the server will be very slow

Method used

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  • Website user identification method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] see figure 1 , which is a flowchart of an embodiment of a method for identifying website users in the present invention, the method includes the following steps:

[0050] Step 101: Obtain account number and user ID from the database;

[0051] When a website user logs in to the website, the server will record the account and some user IDs of each website user when logging in to the website, and save them in the database. During specific implementation, account numbers and user IDs saved within a certain period of time (for example, within the last 3 months) may be periodically acquired from the database.

[0052] For example, the account numbers and user IDs obtained from the database may include the following data: (1) a list of all user IDs associated with each account; (2) a list of all accounts associated with each user ID. These data can be used as an adjacency list for representing a connected graph in graph theory, and a connected graph is constructed based on t...

Embodiment 2

[0083] When it is determined that a certain account group is a dangerous website account group, some accounts in the dangerous account group may be stolen accounts, and these accounts are not fraudulent. In order to better distinguish which accounts are more fraudulent in the group of dangerous accounts, on the basis of Embodiment 1, this embodiment further identifies the dangerous user identifier from the connected components, and the account associated with the dangerous user identifier It was finally determined as a dangerous account. see Figure 5 , which is a flow chart of another embodiment of a method for identifying website users in the present invention, the method includes the following steps:

[0084] Step 501: Obtain the account number and user ID from the database;

[0085] Step 502: Create a connected graph by using the account and user ID as nodes and connecting account nodes and user ID nodes that have an associated relationship;

[0086] Step 503: Find conn...

Embodiment 3

[0105] In addition to using the account density and account fraud closure rate in Embodiment 1 to determine whether an account group is a dangerous account group, it can also be determined by judging whether there are accounts closed due to fraud and / or suspected fraud in the account group. Determine whether it is a dangerous account group. see Figure 6 , which is a flow chart of another embodiment of a method for identifying website users in the present invention, including the following steps:

[0106] Step 601: Obtain the account number and user ID from the database;

[0107] Buhou 602: Establish a connected graph by using the account number and user ID as nodes and connecting account nodes and user ID nodes that have an associated relationship;

[0108] Step 603: Find connected components in the connected graph, and the accounts corresponding to all account nodes in the connected components form an account group bound to the same website user;

[0109] For the executio...

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Abstract

The embodiment of the invention discloses a website user identification method and a website user identification device. The website user identification method comprises the steps of: obtaining an account and a user identifier from a database; building a connected graph by using the account and the user identifier as nodes and using a manner of connecting with an account node and a user identifier node with association relationships; searching a connected component in the connected graph, wherein the accounts corresponding to all account nodes in the connected component forms an account group bound with the same website user, computing the account density and the account fraud close rate of the account group; judging whether the account density and the account fraud close rate are within preset normal numerical ranges; if yes, determining the account group to be a dangerous account group, and determining the website user bound with the dangerous account group to be a dangerous website user, otherwise, determining the account group to be a normal account group, and determining the website user bound with the normal account group to be a normal website user. According to the website user identification method and device, the website users can be effectively identified, the accuracy rate of identification can be improved, and the purpose of preventing fraud cases in advance can be achieved.

Description

technical field [0001] The invention relates to the field of computer applications, in particular to a method and device for identifying website users. Background technique [0002] All kinds of websites usually have a large number of website users. Among these website users, some website users will use the platform of the website to carry out certain fraudulent acts on other website users after logging in to the website. For example, some sellers (users of Taobao.com's website) publish false product information on Taobao.com, and only accept money but not deliver goods, defrauding buyers of their money. For the website system, these website users who commit fraudulent acts are dangerous website users. [0003] In order to prevent and control the fraudulent behavior of dangerous website users, it is necessary to accurately identify which are dangerous website users from a large number of website users. Usually, a website user logs in to the website through an account, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06F21/31
CPCG06Q30/0185G06Q10/10G06F16/958
Inventor 林古立陈德品陈智强
Owner ALIBABA GRP HLDG LTD
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