师范大学学报(自然科学版)引频与下载的相关性分析——基于8家师范大学学报(自然科学版)近5年引频与下载情况统计分析

Correlation analysis between citation frequency and downloads of Normal University Journals (NSE) : Statistical analysis based on data of eight Normal University Journals for the recent five years

引频与下载是衡量期刊学术影响力的两大指标,它们各自从不同侧面反映了学术论文的被关注情况.为进一步探究它们之间的关联程度及各自的适用场合,以中国知网(CNKI)数据为依据,对全国知名度较高且有地域代表性的8家师范大学学报(自然科学版)2012—2016年发表的论文引频与下载数据进行了统计分析,并对其篇均引频与篇均下载进行了研究.结果显示:1)篇均引频与篇均下载的走势基本趋同,都随着时间的推移而增长,但部分期刊的篇均下载在5年中有峰值出现,而篇均引频却没有;2)论文发表3至4年后,单篇最大下载与单篇最大引频为同一篇论文的概率很大,且其引频与下载的数值远远超过相应的指标;3)论文发表3年后引频与下载趋于稳定.建议:师范大学学报(自然科学版)的影响因子计算调整为论文发表后前3年的总被引频次/前3年发表的论文总数.

Citation frequency and downloads were used as two major indexes to measure the academic impact of the journals. Both indexes, from different perspectives, reflected how much attention the research article drew from the audiences. In order to further explore the correlation between the two indexes as well as their corresponding applications, the citation frequency and downloads per journal and per published article of 8 Normal University Journals (NSE) between 2012 and 2016 were statistically studied based on the CNKI data. These journals were selected because of their reputations and regional representations domestically. The results showed that: 1) the trends between citation frequency and downloads per article were similar: both increased over time. However for certain journals, there were peak values for 5 years in downloads which did not occur in citation frequency;2) in 3~4 years after publication, there was a high probability that the same article of highest citation frequency would also be the most frequently downloaded;3) the citation frequency and downloads tend to be stable after the publication of 3 years. Based on the findings, it was suggested that the calculation of the impact factors of the Journal of Normal University (NSE) should be adjusted to the ratio of total number of citation frequency / total number of published articles in the first 3 years after publication.