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| Document Relevance Calculation Based on Lexical Cohesion |
| Zhao Yu-ming Xu Zhi-ming Wang Xiao-long Zhu Kun-peng |
| School of Computer Science and Technolog, Harbin Institute of Technolog, Harbin 150001, China |
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Abstract A new document relevance calculating method based on lexical cohesion is presented in this paper. The main principle is: documents are formalized with lexicon chains which are constructed by extracting semantic-relative word clusters according to the lexicon cohesion principle under the help of semantic dictionary HowNet; then weight of each lexical chain is evaluated; finally relevance of documents is calculated with their representations. Experiments are conducted on corpus of Chinese Library Classification, and precision about 85.4% is achieved. The experimental results show that the method describes the semantic feature of documents to a certain extent, and it is an effective method for relevance calculating of documents.
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Received: 02 April 2007
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Corresponding Authors:
Zhao Yu-ming
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2008, Vol. 30 
