INDICATORS OF SCIENTIFIC COLLABORATION 1. Co-authorship as ameasure of scientific collaboration Kretschmer, 1992 年将科研合作定义为科学内的社会分层。 The publishedresults of intra- and extramural collaboration have been compared at theinstitutional level, and the strongly intensifying do ...
一. 信息科学和文献计量学中关于引用的定义 Susan Cozzens(1989) citation is only secondarily a reward system. Linda C. Smith citations are signposts left behind after information has been utilized. Blaise Cronin defined citation as,frozen footprints in thelandscap ...
1. 影响因子 （ Impact Factor,IF）, 即某期刊前两年发（ S, T ）表的论文在统计当年（ U ）的被引用总次数 X （前两年总被引次数）除以该期刊在前两年（ S, T ）内发表的论文总数 Y （前两年总发文量）。这是一个国际上通行的期刊评价指标。公式为： IFU = （ X ...
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