学科交叉与科学家学术影响力之间的关系研究

Analyzing Interdisciplinarity and Scientists' Academic Impacts

【目的】从跨学科合作与跨学科引用两个角度,研究学科交叉与科学家学术影响力之间的关系。【方法】以200位国家自然科学基金杰出青年基金入选者收录在Web of Science数据库中的论文为例,视不同学科作者的合著关系为跨学科合作,视不同学科的引用关系为跨学科引用,采用布里渊指数测度跨学科程度,采用H指数、H5指数测度科学家学术影响力,用相关分析判断学科交叉与科学家学术影响力之间的关系。【结果】在样本集范围内,仅在生物学部中发现跨学科合作与学术影响力之间存在相关关系;仅在生物学部和医学学部中发现跨学科引用与学术影响力之间存在相关关系。【局限】以作者机构判断所属学科的方法较粗糙;学科分类标准对结果有一定影响。【结论】科学家的跨学科合作和跨学科引用偏好与其学术影响力之间并不存在必然的关联。

[Objective] This paper explores the relationship between the scientists’ interdisciplinary knowledge and their academic impacts. [Methods] First, we collected 200 candidates from the 2016 National Natural Science Foundation Outstanding Youth Program and their articles indexed by the Web of Science. Then, we retrieved interdisciplinary co-authorship and citation data. Third, we used Brillouin’s index as a measure of interdisciplinarity and h index as a measure of academic influence. Finally, we calculated the correlation coefficients between interdisciplinarity and academic influence. [Results] We found no significant correlation between inter-disciplinary collaboration and academic influence except for the field of biology, and no significant correlation between interdisciplinary citations and academic influence except the areas of medicine or biology. [Limitations] Deciding a scientist’s discipline based on his/her affiliation might be biased. [Conclusions] A scientist’s interdisciplinary collaborations and citations are not necessarily correlated to his/her academic influence.