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Microblog burst topic detection method based on burst word detection and filtering

A technology for topic detection and burst words, applied in the Internet field

Active Publication Date: 2022-06-21
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

However, there are still some challenges for the sudden topic detection of Weibo.

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  • Microblog burst topic detection method based on burst word detection and filtering

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Embodiment Construction

[0015] In order to make the purpose, algorithm calculation and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings. The concrete realization of the algorithm of the present invention is divided into the following steps:

[0016] 1. Burst word detection based on word burst value calculation

[0017] Combining the basic weight and burst weight of words, a burst word algorithm based on burst value calculation is proposed. The algorithm mainly includes two parts: basic weight calculation and burst weight calculation. This process is described using formula (1):

[0018] W(i,j)=λF(i,j)+(1-λ)B(i,j) (1)

[0019] where F(i,j) and B(i,j) represent the word W respectively i Base weight and burst weight at the jth time slice, W i Represents the i-th word in the dictionary, and j represents the order of time slices. λ is the adjustment coefficient (0<λ<1). The specif...

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Abstract

The invention proposes a microblog burst topic detection method based on burst word detection and filtering. The method includes three parts: burst word detection based on word burst value calculation, pseudo burst word recognition based on burst value index average calculation, and burst topic recognition based on topic keywords and burst word similarity. The theoretical system is complete and innovative, and it is mainly used in social network text processing. The invention provides a solution for microblog burst topic detection and has high practical value.

Description

technical field [0001] The invention belongs to the field of Internet technology, and in particular relates to a method for detecting a sudden topic. Background technique [0002] In recent years, with the rise of Web 2.0 social networks, microblogs have become popular rapidly due to their convenience and convenience, and have now developed into the main way for network information dissemination. Emergent topics spread very fast in Weibo and can have huge influence. Therefore, the social emergency topic detection technology on the Weibo platform can detect social hotspots in a timely manner, perceive online public opinion as soon as possible, and respond to emergency topics as soon as possible. and so on have positive practical significance. However, there are still some challenges for the detection of sudden topics in Weibo. First, the topics on Weibo are diverse. At the same time, various topics on Weibo, such as social topics, entertainment gossip topics, personal life...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F40/279G06F16/33
CPCG06F16/3346G06F16/3334
Inventor 薛哲杜军平张强
Owner BEIJING UNIV OF POSTS & TELECOMM
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