Abstract:

[Purposes] To explore the effectiveness of the percentage of top papers (Ptop) published by journals for the evaluation of the academic influence of journals. [Methods] Using WoS database, we obtained the catalogue of SSCI-indexed library and information science journals in 2023 and the main bibliometric indexes, and using InCites database, we collected all the papers published by library and information science journals in 2021―2022 and their citation frequencies, and further obtained the distribution numbers of journals with Ptop5%, Ptop10%, Ptop15%, Ptop20% and Ptop25%, respectively, and calculate the percentage of Ptop5%, Ptop10%, Ptop15%, Ptop20%, Ptop25% of each journal of library intelligence. Using the Scopus database, the 2023 CiteScore, SNIP, and SJR of library and information science journals were included, and the correlation analysis between the different Ptop percentages library and information science journals and their main journal evaluation indexes was carried out. Databases of WoS, InCites and Scopus, were used to obtain data on indicators such as Ptop5% share, Impact Factor Percentile, JCI, SNIP and SJR for journals in ethics, communication and business finance, following the methodology described above. [Findings] Different Ptop ratios of SSCI library and information science journals had significant positive correlations with the impact factor, CiteScore, 5-year impact factor, the immediacy index, eigenfactor, article influence score of the journals (all P=0.000), and negative correlations with the cited half-life of the journals (all P>0.05). Among the different Ptop percentages, Ptop 15% showed the greatest correlation with impact factor (r=0.949); while Ptop 5% showed the greatest correlation with CiteScore, 5-year impact factor, immediacy index, eigenfactor and article influence score. The different Ptop percentages of library and information science journals showed significant positive correlations with impact factor percentile, JCI, SNIP, and SJR (all P=0.000); among the different Ptop percentages, Ptop15% showed the strongest correlation with impact factor percentile (r=0.949), Ptop20% showed the greatest correlation with JCI, and Ptop5% showed the greatest correlation with SNIP, SJR both had the strongest correlation (r=0.699, r=0.758).The Ptop5% share of journals in the three disciplines of ethics, communication and business finance included in the SSCI had a positive correlation with their impact factor percentile, JCI, SNIP, and SJR (all P <0.001). [Conclusions] The different Ptop percentages of journals can be used to evaluate the academic impact of journals, among the different Ptop percentages, the Ptop5% percentage is more suitable for the evaluation of the academic impact of journals.

Key words: Highly cited papers, Journal evaluation, Impact factor, Top papers ratio

摘要：

【目的】探讨期刊发表的Top论文(Ptop)占比用于期刊影响力评价的效果。【方法】利用WoS数据库,获取2023年SSCI收录的图书情报学期刊目录及主要文献计量学指标;利用InCites数据库,收集图书情报学期刊2021―2022年发表所有论文及被引频次,按照论文被引频次从高到低排序后获取Ptop5%、Ptop10%、Ptop15%、Ptop20%、Ptop25%的期刊分布数,再分别计算图书情报学每种期刊的Ptop5%、Ptop10%、Ptop15%、Ptop20%、Ptop25%占比;利用Scopus数据库,收录图书情报学期刊2023年的CiteScore、SNIP和SJR,对图书情报学期刊不同Ptop占比与其主要期刊评价指标进行相关性分析;利用WoS、InCites和Scopus 3个数据库,按照上述方法获取伦理学、传播学和商业金融学期刊的Ptop5%占比、影响因子百分位、JCI、SNIP和SJR等指标数据。【结果】 SSCI收录图书情报学期刊不同Ptop占比与期刊的影响因子、CiteScore、5年影响因子、即年指标、特征因子、论文影响分值均有显著的正相关关系(均为P=0.000),与期刊的被引半衰期均呈负相关(均为P>0.05)。Ptop15%与期刊影响因子的相关性最强(r=0.949);而Ptop5%与CiteScore、5年影响因子、即年指标、特征因子、论文影响分值的相关性均为最强。图书情报学期刊不同Ptop占比与影响因子百分位、JCI、SNIP、SJR均有显著的正相关关系(均为P=0.000);Ptop15%与影响因子百分位的相关性最强(r=0.949),Ptop20%与JCI的相关性最强,而Ptop5%与SNIP、SJR的相关性均为最强(r=0.699,r=0.758)。SSCI收录的伦理学、传播学和商业金融学期刊Ptop5%占比与其影响因子百分位、JCI、SNIP、SJR均有正相关关系(均为P<0.001)。【结论】期刊不同Ptop占比可以用来评价期刊的学术影响力,在不同Ptop占比中,Ptop5%占比更适宜于期刊的学术影响力评价。

关键词: 高被引论文, 期刊评价, 影响因子, Top论文占比