以天津大学订购的ScienceDirect数据库为例,以成本作为基准变量,以5年影响因子、即时指数、特征因子、论文影响值、SJR、SNIP和H指数作为参考变量,对代表性电子期刊进行层次聚类分析。研究结果表明,各类期刊在质量和使用成本方面都具有显著特征,据此确定期刊订购原则,可使图书馆的电子期刊订购更加科学合理。
Taking Tianjin University as an example, this paper makes the hierarchical clustering analysis of representative electronic periodicals in ScienceDirect, including reference indicator based on cost and bibliometric indicators based on 5-year Impact Factor, Immediacy Index, Eigen factor, Article Influence Score, SCImago Journal Rank, Source Normalized Impact per Paper and H index. The result shows that the quality and cost of various periodicals have remarkable characteristics, thus making subscription principles can make the more scientific and reasonable basis for libraries on periodicals subscription.
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