基于共引网络的出版物影响力评价新指标:相对引用率

A New Index of Publication Impact Evaluation Based on Co-citation Network:Relative Citation Rate

[目的/意义]近年来在科研基金分配和学术成果评价中,应用规范化评价指标已经成为国内外科学计量评价领域的共识。美国国立卫生研究院(NIH)提出基于共引网络的评价指标——相对引用率(Relative Citation Ratio,RCR)。为了证明这种新指标的优势,探究与其他类型的归一化指标的异同,文章分别对不同地域的不同学科期刊文献、交叉学科文献及单学科文献,检验RCR与学科规范引文影响力(CNCI)指标是否正向显著相关。[方法/过程]利用InCites数据库分别检索2016年全球、中国、美国地区的共计22个ESI学科期刊文献,8种交叉学科期刊文献和ESI的8个不同领域被引频次最高的单学科期刊文献,分别计算文献的RCR与CNCI,进行相关性检验。[结果/结论]结果显示不同地域的不同学科期刊文献、交叉学科文献及单学科期刊文献,RCR与CNCI均显示正向显著相关,交叉学科文献的相关系数低于单学科文献。对于跨学科文献的影响力评估,RCR指标避免以往归一化算法因多个学科属性归属问题导致的干扰,具有一定优势。

[Purpose/significance]In recent years,in the allocation of scientific research funds and evaluation of academic results,the application of standardized evaluation indicators has become a consensus in the field of scientific measurement evaluation at home and abroad.The National Institutes of Health(NIH)proposed an evaluation index based on co-citation networks-Relative Citation Ratio(RCR).In order to prove the advantages of this new indicator and explore the similarities and differences with other types of normalized indicators,this article examines whether the RCR and Category Normalized Citation Impact(CNCI)indicators are Significantly positive correlation in different subject journal literatures,interdisciplinary literature,and single-disciplinary literature in different regions.[Method/process]The InCites database was used to search a total of 22 ESI journal articles from the world,China,and the U.S.,8 cross-disciplinary journal articles,and 8 most-cited single-disciplinary journal articles from different fields in ESI.The time limits are all 2016.The relative application rate,RCR,and CNCI were tested for correlation.[Result/conclusion]The results showed that the journal literature,interdisciplinary literature,and single-disciplinary literature of different disciplines in different regions showed positive correlation between RCR and CNCI,and the correlation coefficient of interdisciplinary literature was lower than that of single-disciplinary literature.For the impact evaluation of interdisciplinary literature,the RCR index has the advantage of avoiding the interference caused by the past normalization algorithm due to the problem of attribute assignment of multiple disciplines.