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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 Fuhai
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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 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 wordsDisjoint literature-based discovery      B collection      Literature cohesion      MeSH     
Received: 22 April 2009      Published: 25 June 2009


Corresponding Authors: yun-qiu zhang     E-mail:
About author:: Zhang Yunqiu,Leng Fuhai

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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