2011 Fiscal Year Final Research Report
Link-creating method in citation network analysis
| Project/Area Number |
21700266
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Library and information science/Humanistic social informatics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
KAJIKAWA Yuya 東京大学, 大学院・工学系研究科, 特任講師 (70401148)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 情報図書館学 / 情報工学 |
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| Research Abstract |
Citation network analysis has been used to comprehend an overview of academic research. Three methods, co-citation, bibliographic coupling, and direct citation, are known, but there are few studies to compare those methods with real data. This research quantitatively revealed characteristics of them. Citation networks were created with those three methods, and evaluated their relevance, effectiveness, and efficiency. A method giving weight on links are proposed and also analyzed. It is found that direct citation is superior to the others in detection of emerging research fields. Term distribution, interdisciplinarity, citation lag were also investigated.
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