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New Technology of Library and Information Service  2009, Vol. 25 Issue (6): 50-54    DOI: 10.11925/infotech.1003-3513.2009.06.10
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Research on the Literature Cohension-Based Ranking Method of Disjoint Literature-Based Discovery
Zhang Yunqiu1  Leng Fuhai2 
1（School of Public Health, Jilin University, Changchun 130021,China)  
2（National Science Library, Chinese Academy of Sciences, Beijing  100190,China)
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Abstract  

 Based on the analysis of the existing ranking methods of B collection of disjoint literature-based discovery, this paper proposes literature cohesion-based ranking method according to the co-occurrence theory and the subject relative degree. Then, an experiment is conducted comparing with one of Swanson’s former discoveries. The size of B and the occurrence of the target terms and target relations are explored to evaluate the effect on B of the two methods including the literature cohesion-based weight and the inverse document frequency-based weight. The results of the experiment indicate that the literature cohesion-based ranking method can improve the quality of B and enhance efficiency of discovery accordingly.
Key words： Disjoint literature-based discovery      B collection      Literature cohesion      MeSH     
Received: 22 April 2009      Published: 25 June 2009
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G353.1

 		 
Corresponding Authors: yun-qiu zhang     E-mail: zhangyq@mail.las.ac.cn
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Cite this article:

Zhang Yunqiu,Leng Fuhai. Research on the Literature Cohension-Based Ranking Method of Disjoint Literature-Based Discovery. New Technology of Library and Information Service, 2009, 25(6): 50-54.

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https://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/10.11925/infotech.1003-3513.2009.06.10     OR     https://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/Y2009/V25/I6/50

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