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.
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.
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