摘要
[目的/意义]对比分析不同引证时间窗口年度h指数与累积h指数对期刊评价效力的异同,为进一步完善h指数用于学术评价体系提供新思路。[方法 /过程]以SSCI收录的信息科学和图书馆学期刊为例,计算各刊2015年不同引证时间窗口(2年、3年、4年、5年、6年、7年、8年、9年、10年)的年度h指数和累积h指数,查看各h指数间的相关性,同时将各h指数与常用期刊评价指标总被引频次、影响因子、5年影响因子、特征因子、论文影响分值等做相关性分析,以对比各h指数对期刊的评价效力。[结果/结论]不同引证时间窗口年度h指数与累积h指数间均呈显著正相关(均为P=0.000),与各评价指标间亦均呈显著正相关(均为P<0.01)。相对来说,不同引证时间窗口的累积h指数、年度h指数与影响因子的相关度最小,其次为与论文影响分值的相关度,与5年影响因子和特征因子的相关度最大。年度h指数、累积h指数与5年影响因子的相关系数的高峰分别在6年和5年。对信息科学与图书馆学期刊来讲,仅以数值大小来说,累积h指数较年度h指数更灵敏,更适宜用于期刊评价;从期刊排序来讲,二者具有相同的评价效力;年度h指数、累积h指数的最适引证时间窗口分别为6年和5年。
[ Purpose/significance] This paper aims to compare the effectiveness of the annual h index and the accumulative h index in different citation time windows on the evaluation of journals. It can provide new ways to further improve the h index for the academic evaluation system. [ Method/process ] Taking the Information Science and Library Science journals included in SSCI as examples, the paper calculates the annual h index and the accumulative h index of the year 2015 in different citation time windows （2 years, 3 years, 4 years, 5 years, 6 years, 7 years, 8 years, 9 years, 10years）. The correlation between the annual h index and the accumulative h index in different time windows, and the correlation among each h index and the total cited frequencies, impax：t factor, 5-year influencing factor, Eigenfactor and article influence score are analyzed. [ Result/conclusion ] There are sig- nificant positive correlations among the annual h index and the accumulative h index in different time windows （ P -- 0. 000）, as well as the correlation among each h index and other journal evaluation indexes （P 〈 0. 01 ）. In contrast, the correlation of the an- nual h index, accumulative h index in different citation time windows with impact factor is weakest, their correlation with the article influence score is higher, and their correlations with 5-year impact factor and Eigenfactor are strongest. The correlation coefficients of the annual h index, the accumulative h index with the 5-year impact factor reach the highest at 6 years and 5 years respective- ly. In terms of Information Science and Library Science journals, the accumulative h index is more sensitive than the annual h in- dex, and it is more suitable for the evaluation of journals. In terms of periodical rankings, the two indexes have the same evaluation effect. The best citation time windows of annual h index and accumulative h index are 6 years and 5 years respectively.
出处
《情报理论与实践》
CSSCI
北大核心
2018年第4期145-149,共5页
Information Studies:Theory & Application
基金
国家社会科学基金资助项目"影响因子缺陷的多维度矫正与学术期刊跨学科评价研究"(项目编号:15BTQ061)
河南省高等学校哲学社会科学基础研究重大项目"河南省高校哲学社会科学研究绩效评价和发展对策"(项目编号:2015-JCZD-013)
河南省教育厅人文社会科学研究一般项目"我国人文社会科学研究国际影响力现状分析"(项目编号:2018-ZZJH-420)
乡医学院科技期刊与科研绩效评价研究培育基地项目的研究成果
关键词
年度h指数
累积h指数
期刊评价
比较研究
annual h index
accumulative h index
journal evaluation
comparative study
