考虑载文量影响的h指数优化研究——hq2指数

Research on h-index Optimization Considering the Amount of Papers——hq2-index

[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hq 2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hq 2指数与其他期刊评价指标的相关性,其次对hq 2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hq 2指数的拟合优度。[结果/结论]研究结果表明:hq 2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hq 2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;hq 2指数具有识别优秀期刊的能力。

[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 hq 2-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 hq 2-index and other journal evaluation indicators.Secondly,it conducted independent sample T-test on hq 2-index,and finally adopted regression.The analysis analyzed the goodness of fit of the h-index,the impact factor and the hq 2 index.[Result/Conclusion]The results showed that the hq 2-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 hq 2-index had a positive correlation with the h index and the impact factor.It is a viable journal evaluation index;the hq 2-index has the ability to identify excellent journals.