Title: Concept Extraction and Clustering for Search Result Organization and Virtual Community Construction
Authors: Chen, Shihn-Yuarn
Chang, Chia-Ning
Nien, Yi-Hsiang
Ke, Hao-Ren
資訊管理與財務金融系 註:原資管所+財金所
Department of Information Management and Finance
Keywords: information retrieval;concept extraction;document clustering;virtual community;social network analysis;bibliographic coupling
Issue Date: 1-Jan-2012
Abstract: This study proposes a concept extraction and clustering method, which improves Topic Keyword Clustering by using Log Likelihood Ratio for semantic correlation and Bisection K-Means for document clustering. Two value-added services are proposed to show how this approach can benefit information retrieval (IR) systems. The first service focuses on the organization and visual presentation of search results by clustering and bibliographic coupling. The second one aims at constructing virtual research communities and recommending significant papers to researchers. In addition to the two services, this study conducts quantitative and qualitative evaluations to show the feasibility of the proposed method; moreover, comparison with the previous approach is also performed. The experimental results show that the accuracy of the proposed method for search result organization reaches 80%, outperforming Topic Keyword Clustering. Both the precision and recall of virtual community construction are higher than 70%, and the accuracy of paper recommendation is almost 90%.
URI: http://hdl.handle.net/11536/16191
ISSN: 1820-0214
Journal: COMPUTER SCIENCE AND INFORMATION SYSTEMS
Volume: 9
Issue: 1
End Page: 323
Appears in Collections:Articles


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