摘要
利用8种医学期刊群的互引关系矩阵,在受出版过程影响的实际引文分布模型基础上,建立互引期刊群中受某期刊出版延时影响的期刊被引半衰期的计算公式,并对期刊群中各期刊出版延时增加后引起的期刊被引半衰期变化的过程进行仿真研究,得出当某期刊出版延时增加时将不同程度地延长互引期刊群中期刊的被引半衰期,其中互引关系密切的期刊受影响较大。
The inter-citation journal group is defined as a group of journals with inter - citation relations. In this paper, according to an inter - citation relation matrix of 8 medical journals that is established from the 2003 JCR, the calculation formula of journal cited half - life disturbed by publication delays of certain journal in the group is deduced based on the mathematical model of the disturbed citing process and a changing process of every journal＇ s cited half - life caused by the increase of each journal＇ s average publication delay is simulated. In the inter - citation journal group, when a journal＇ s publication delay increase, cited half - lives of all journals will be prolonged. The closer a citation relation between two journals, the stronger interaction of them and the more increase their cited half- lives caused by the increase of their publication delays.
出处
《科学学研究》
CSSCI
北大核心
2006年第A02期528-531,共4页
Studies in Science of Science
基金
国家自然科学基金(70571020)
关键词
互引期刊群
被引半衰期
出版延时
inter-citation journal group
publication delay
cited half-life
