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考虑载文量影响的h指数优化研究

2020-08-14俞立平韩亚茹张再杰

现代情报 2020年2期

俞立平 韩亚茹 张再杰

摘 要:[目的/意义]针对h指数受载文量影响大、区分度低等问题,本文提出了hq2指数,其原理是用h指数除以开平方后的载文量。[方法/过程]基于中国知网(CNKI)引文数据库,以46种综合社科期刊为例进行实证研究,首先分析hq2指数与其他期刊评价指标的相关性,其次对hq2指数进行独立样本T检验,最后采用回归分析分别分析h指数、影响因子与hq2指数的拟合优度。[结果/结论]研究结果表明:hq2指数相比于h指数能够降低载文量对期刊评价的影响,对于h指数相同的期刊也具有较好的区分能力,同时hq2指数与h指数、影响因子呈现正相关关系,是一个具有可行性的期刊评价指标;hq2指数具有识别优秀期刊的能力。

关键词:h指数;载文量;区分度;hq2指数;期刊评价

DOI:10.3969/j.issn.1008-0821.2020.02.013

〔中图分类号〕G250.252 〔文献标识码〕A 〔文章编号〕1008-0821(2020)02-0114-08

Research on h-index Optimization Considering the Amount of Papers

——hq2-index

Yu Liping1,3 Han Yaru2 Zhang Zaijie3

(1.School of Statistics and Mathematics,Zhejiang Gongshang University,Hangzhou 310018,China;

2.School of Management and E-business,Zhejiang Gongshang University,Hangzhou 310018,China;

3.Institute of Green Development Strategy in Western China,Guizhou University of finance and Economics,

Guiyang 550025,China)

Abstract:[Purpose/Significance]The h-index is regarded as a new generation of journal evaluation index after the impact factor because of its simple definition,simple calculation and robust results.However,the shortcomings of h-index are obvious,such as large impact of the amount of papers loaded and low discrimination.In view of the above two shortcomings of the h-index,this paper proposes the hq2- index,which is based on the h-index divided by the amount of paper-loaded after square rooting.[Method/Process]Based on the China Knowledge Network(CNKI)citation database,this paper conducted empirical research on 46 comprehensive social science journals.First,it analyzed the correlation between hq2-index and other journal evaluation indicators.Secondly,it conducted independent sample T-test on hq2-index,and finally adopted regression.The analysis analyzed the goodness of fit of the h-index,the impact factor and the hq2 index.[Result/Conclusion]The results showed that the hq2-index can reduce the impact of the paper load on the journal evaluation compared with the h-index.It also had a good discriminating ability for the journals with the same h index,and the hq2-index had a positive correlation with the h index and the impact factor.It is a viable journal evaluation index;the hq2-index has the ability to identify excellent journals.

Key words:h-index;amount of papers;discrimination;hq2-index;journal evaluation

2005年,Hirsch J E[1]提出一個新的计量指标——h指数,该指标主要用于评价科研工作者的个人学术成就。由于计算的科学性和简便性,h指数在其他领域也得到了广泛的推广应用。2006年,Braun T等[2]将h指数应用到期刊评价中,定义了期刊h指数。同年,van Raan A F J[3]将h指数原理推广到机构评价中。Guan J C等[4]以半导体技术领域的数据为例,将h指数应用到专利分析中。孙宇等[5]认为h指数可以作为评价出版社学术影响力的指标。除此之外,h指数还在馆藏图书借阅、大学和医院等领域得到拓展应用。

h指数也有不足之处,主要表现在:载文量高的期刊往往会出现h指数也高的现象,而且对于创刊时间早的期刊,即使其每年的……

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