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Method and system for discovering network hot topic based on situation assessment

A hot topic and situation assessment technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as the inability to recognize new words that have not been included, and achieve the effect of great practical value

Inactive Publication Date: 2011-02-23
BEIJING JIAOTONG UNIV
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Problems solved by technology

However, the method of community segmentation found that the BBS network has a certain self-similarity, and applied it to the discovery of hot topics, and could not identify new words that were not included in the description of emergencies.

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  • Method and system for discovering network hot topic based on situation assessment
  • Method and system for discovering network hot topic based on situation assessment
  • Method and system for discovering network hot topic based on situation assessment

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Embodiment Construction

[0025] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] The algorithm and realization that the present invention proposes are set forth in detail below in conjunction with embodiment and accompanying drawing:

[0027] The frequent occurrence of emergencies requires network managers to be able to discover hot topics that erupt suddenly in a short period of time. In order to meet the needs of users to discover sudden hot topics in Internet forums in real time, the present invention is oriented to post clues in Internet forums, comprehensively utilizes topic discovery and tracking algorithms and situation assessment ideas, and performs algorithmic organization forms of optional and customizable processing processes. Analyze text information and data mining, and discover hot topics....

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Abstract

The invention discloses a method and a system for discovering a network hot topic based on situation assessment. The method comprises the following steps of: acquiring internet forum data in real time; preprocessing corpus of the internet forum data and extracting a candidate word string; forming a characteristic set in a vector form to express each post based on the candidate word string; clustering the posts, acquiring the discovered hot topic according to the clustering result and quantizing; and performing situation assessment on the hot topic generated by clustering and correcting the discovered hot topic according to a situation assessment result. By comprehensively utilizing a topic discovering and tracking algorithm and a situation assessment idea, the organization form of algorithms of selectable and customable processing processes is realized to analyze text information and mine data so as to discover the hot topic. The experiment result verifies the validity and the accuracy of the method and the system and the method and the system have great practical value.

Description

technical field [0001] The invention relates to network information analysis and data mining technology in the field of network information security, in particular to a method and system for discovering network hot topics based on situation assessment. Background technique [0002] With the continuous development of computer networks, network information has become an important part of daily life, and the Internet has become an important place for people to obtain information and communicate. Under the domination of "Moore's Law on the Internet", the amount of Internet information is doubling every 100 days, and a large amount of real-time information is flooding the Internet. In these massive heterogeneous Web information resources, there are huge potential value. [0003] Facing the exponential growth of new information, how to effectively grasp massive amounts of data, extract hot topics from it, or obtain the information you want has become a problem that has plagued In...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 刘云司夏萌张振江沈波程辉程军军熊菲
Owner BEIJING JIAOTONG UNIV
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