Network flow and delaminated knowledge library based dynamic file clustering method

A technology of text clustering and network flow, applied in the fields of information processing and network content security
CN101059805AInactive Publication Date: 2007-10-24FUDAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUDAN UNIV
Publication Date
2007-10-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a dynamic text cluster method based on network flow and laminated knowledge base, belonging to information processing and network safety technical field. The inventive method comprises that first assuming the clustered file type is provided with vector character, using TFIDF method to extract and normalize character of single clustered text, using the method that defining meaning distance in the knowledge base to calculate the distance of text and type, adjusting and refreshing keyword and weight of the type of new added file, when present file can not be combined with known types, needs to build new type. And the algorism comprises dynamic character vector extraction, type classification, distance calculation, type combination and new type construction. The invention is characterized in that the cluster process is based on the meaning information provided by the laminated knowledge base but not keyword, the invention can dynamically remove noise data, the similarity is calculated network flow algorism, to confirm optimized match, and the invention can meet real-time refresh cluster of Web text, in particular as non-detect type, without pre-appointing type group.
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Description

technical field

[0001] The invention belongs to the technical field of information processing and network content security, and in particular relates to a dynamic text clustering method based on network flow and layered knowledge base. technical background

[0002] Today we are living in the era of information explosion. According to relevant data, by 2003 the total number of Internet pages in the world reached 13.1 billion. Some experts predict that Chinese will become one of the largest languages ​​on the Internet. The Internet has also become an important channel for people to publish and obtain information. Online media such as news, forums, and blogs have developed into an important window for insight into public opinion in China, and online public opinion is exerting an increasing influence on public thinking and government decision-making. The coverage of China's Internet continues to expand, and Chinese netizens' active speech has reached an unprecedented level. In...

Claims

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