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Microblog information dissemination key node recognition method based on improved PageRank algorithm

A technology of information dissemination and key nodes, applied in the field of data analysis, can solve public security threats and other issues, and achieve high stability, convenient and fast group discovery effect

Pending Publication Date: 2018-10-12
NAT COMP NETWORK & INFORMATION SECURITY MANAGEMENT CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, credibility is the weak point of "self-media". Some key users engage in topic manipulation in the process of information dissemination, so vulgar content, rumors, false information, etc. are prone to appear, and the credibility of Weibo information has become a big problem. The speed of Internet information dissemination is extremely fast, and the content of Weibo public opinion information will pose a threat to social public safety

Method used

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  • Microblog information dissemination key node recognition method based on improved PageRank algorithm
  • Microblog information dissemination key node recognition method based on improved PageRank algorithm
  • Microblog information dissemination key node recognition method based on improved PageRank algorithm

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Comparison scheme
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Embodiment

[0064] The invention provides a method for identifying key nodes of microblog information dissemination by improving the PageRank algorithm, comprising:

[0065] 1) First collect relevant propositions such as popular topics, hot search rankings, and public opinion on sensitive topics in the past three months, as well as related group information, use WEB crawler technology to collect user IDs of members in a micro-group, and obtain JSON files through the API interface Relevant parameters of microblog information in the format; by calling the microblog reading interface function "statuses / user_timeline" of the API, the list of microblogs published by the user can be obtained. The required fields to obtain include:

[0066] created_at string Weibo creation time

[0067] id int64 Weibo ID

[0068] idstr string Weibo ID of string type

[0069] text string Weibo information content

[0070] source string Weibo source

[0071] in_reply_to_status_id string Reply ID

[0072] use...

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Abstract

The invention provides a microblog information dissemination key node recognition method based on an improved PageRank algorithm. The method comprises the steps that 1, information is acquired; 2, text information with the most forwarding number in a microblog group is determined; 3, text information using @ user identifier is acquired by means of the text information acquired in the step 2, wherein the user is B; 4, high frequency words are calculated by means of the text information acquired in the step 3; 5, the microblog text information of the user B is acquired and then compared with thehigh frequency words, whether or not the text information with the most forwarding number of members in the microblog group A is forwarded by the user B is determined, if it is determined that the text information is forwarded by the user B, whether or not B transmits the text information to a user C is determined, and then a dissemination path of the information is formed; 6, the microblog groups to which the users on the dissemination path belong are determined, and then a microblog group concern network is constructed; and 7, the most powerful microblog group is determined by means of theWeiboRank algorithm. According to the method, mining of key nodes among the microblog groups and in the groups is achieved, a complex data model does not need to be built, group discovery is conveniently and quickly achieved, and the high stability is achieved.

Description

technical field [0001] The invention relates to the field of data analysis, in particular to a method for identifying key nodes of microblog information dissemination based on an improved PageRank algorithm. Background technique [0002] Weibo has become a landmark product of Times Network since its inception. This Internet application with a strong "self-media" attribute has become an important social media due to its immediacy and convenience. However, credibility is the weak point of "self-media". Some key users engage in topic manipulation in the process of information dissemination, so vulgar content, rumors, false information, etc. are prone to appear, and the credibility of Weibo information has become a big problem. Internet information disseminates extremely fast, and the content of microblog public opinion information will pose a threat to social and public safety. [0003] Research on microblog network information data analysis and mining influential nodes in inf...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 刘春阳张旭李雄王慧曹旭东
Owner NAT COMP NETWORK & INFORMATION SECURITY MANAGEMENT CENT
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