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现代图书情报技术  2009, Vol. 25 Issue (6): 50-54     https://doi.org/10.11925/infotech.1003-3513.2009.06.10
  情报分析与研究 本期目录 | 过刊浏览 | 高级检索 |
基于文献内聚度的非相关文献知识发现排序方法研究*
张云秋冷伏海2
1(吉林大学公共卫生学院 长春  130021)
2(中国科学院国家科学图书馆 北京 100190)
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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摘要 

在对现有非相关文献知识发现中间集排序方法进行分析的基础上,以共现理论为基础,以主题关联度为着眼点,提出基于文献内聚度加权的B排序方法。并以Swanson的早期发现之一为基础,考察经文献内聚度加权和逆文献频率加权两种方法排序筛选后B的范围以及目标关联词和目标关联对的出现情况,以此作为评价其对B影响的依据。结果表明基于文献内聚度加权法能显著提高B的质量,从而提高发现效率。

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张云秋
冷伏海
关键词 非相关文献知识发现中间集文献内聚度MeSH    
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 wordsDisjoint literature-based discovery    B collection    Literature cohesion    MeSH
收稿日期: 2009-04-22      出版日期: 2009-06-25
: 

G353.1

 
基金资助:

*本文系教育部社科研究基金规划项目“非相关文献知识发现的理论、方法及应用的拓展研究”   (项目编号:07JA870005)的研究成果之一。

通讯作者: 张云秋     E-mail: zhangyq@mail.las.ac.cn
作者简介: 张云秋,冷伏海
引用本文:   
张云秋,冷伏海. 基于文献内聚度的非相关文献知识发现排序方法研究*[J]. 现代图书情报技术, 2009, 25(6): 50-54.
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.
链接本文:  
https://manu44.magtech.com.cn/Jwk_infotech_wk3/CN/10.11925/infotech.1003-3513.2009.06.10      或      https://manu44.magtech.com.cn/Jwk_infotech_wk3/CN/Y2009/V25/I6/50

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