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| Measurement and Analysis of Journal Discriminative Capacity Based on Difference |
| Zhang Baolong1,2, Wang Hao1,2, Deng Sanhong1,2, Su Xinning1,2 |
1.School of Information Management, Nanjing University, Nanjing 210023
2.Jiangsu Key Laboratory of Data Engineering & Knowledge Service, Nanjing 210023 |
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Abstract Current research on journal evaluation focuses primarily on measurement of influence, reputation, quality, and similar concepts. This paper evaluates journals from a new perspective based on content difference, proposing journal discriminative capacity as an index to measure differences in academic journals content. Twenty core journals for each of the five disciplines, which are library and information science (LIS), aerospace, biology, art and law, were selected as research objects. First, content differences between LIS journals were quantitatively analyzed and evaluated. Trends in LIS journals discriminative capacity over time were then explored. Finally, the characteristics of individual and overall discriminative capacity of journals from different disciplines were analyzed and discussed. The results show that the index is highly effective in measuring differences in journal research content, that journals discriminative capacity shows obvious trends over time, and that individual and overall journal discriminative capacity has significant disciplinary characteristics.
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Received: 19 March 2019
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