收稿日期: 2016-02-29
修回日期: 2016-04-02
网络出版日期: 2016-05-05
基金资助
本文系国家社会科学基金项目"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)研究成果之一。
Correction for the Defect of Impact Factor Based on the Distributing Character of Citations: An Empirical Study of Positional Indicators Used in Journal Evaluation
Received date: 2016-02-29
Revised date: 2016-04-02
Online published: 2016-05-05
[目的/意义]探讨被引频次位置指标在科技期刊评价中的作用,确定合适时间窗口的最优位置指标。[方法/过程]从Web of Science数据库中选取符合条件的14种眼科期刊作为研究对象,分别计算各期刊2014年度不同位置指标,包括2年、5年、8年和10年引证时间窗口(citation time window,CTW)的h指数(h2、h5、h8和h10)、累计h指数(a-h2、a-h5、a-h8和a-h10)以及相对应的期刊2014年度被引频次百分位数位置(percentage rank position,PRP)指标(Top1%、Top5%、Top10%、Top25%Top50%)和累计PRP指标(a-Top1%、a-Top5%、a-Top10%、a-Top25%和a-Top50%)。比较影响因子、不同CTW位置指标与期刊问卷调查评分的相关度,确定不同位置指标应用于期刊评价的效果。[结果/结论]合理的位置指标在期刊影响力评价中优于影响因子和5年影响因子,累计被引频次位置指标普遍优于年度指标,2年CTW的h指数优于其他CTW的h指数,5年CTW的a-h2、h2,5年和8年CTW的a-Top50%和Top50%与影响因子和5年影响因子相比具有更理想的期刊评价效果。
刘雪立 , 周晶 , 盖双双 , 盛丽娜 , 付中静 , 董建军 , 方红玲 . 基于被引频次分布特征的影响因子缺陷矫正——位置指标应用于期刊评价的实证研究[J]. 图书情报工作, 2016 , 60(9) : 99 -105,115 . DOI: 10.13266/j.issn.0252-3116.2016.09.014
[Purpose/significance] The paper aims to probe into the roles of citation position indicators used in journal evaluation, and to define the best suitable time window for citation position indicator[BFQ].[BF] [Method/process] kinds of qualified ophthalmology journals were selected from Web of Science database in this study. The different positional indicators in 2014 were calculated for each journal, including 2-year, 5-year, 8-year and 10-year citation time window h-index (h2, h5, h8 and h10), and accumulative h-index (a-h2, a-h5, a-h8 and a-h10), and the corresponding 2014 indicators of journal citation’s Percentage Rank position(PRP), including Top 1%, Top 5%, Top 10%, Top 25% Top 50%, and accumulative PRP(a-PRP) index (a-Top 1%, a-Top 5%, a-Top 10%, a-Top 25% and a-Top 50%). The correlation level of impact factor, positional indicators in different citation time window with questionnaire score were analyzed, and the effects of different positional indicators for journal evaluation were detected. [Result/conclusion] The results show that reasonable position indicators are better than impact factor and 5-year impact factor in journal impact assessment, the accumulative citations position indicators generally better than the annual indicators, h index of 2-year citation time window than that of other citation time window. The a-h2, h2 of 5-year citation time window, and a-Top 50%, Top 50% of 5-year and 8-year citation time window have more desirable effect in journal evaluation compared with the impact factor and 5-year impact factor.
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