学术评价的多变量指标探讨

Probing Multivariate Indicators for Academic Evaluation

结合集成影响指标(I3)和h指数构成I3型多变量指标框架,获得发文矢量X=(X_1,X_2,X_3)和引文矢量Y=(Y_1,Y_2,Y_3)、集成发文指数I3X=X_1+X_2+X_3和集成引文指数I3Y=Y_1+Y_2+Y_3等多变量指标。实证研究显示:整体h核分布适用于评价学者,h核指数X_1和Y_1适用于评价大学的核心影响力,集成指数I3X和I3Y适合替代期刊影响因子JIF。多变量指标为学术评价提供了结合I3和h指数优势的多维视角,可丰富学术评价测度。

Since Garfield introduced the journal impact factor （JIF） and set up citation analysis, some scientometric indicators have been applied to academic evaluations. Then Hirsch proposed the h-index, which was rapidly accepted by the scientific community. This promoted the development of quantitative academic indicators. However, both JIF and h-index have their advantages and disadvantages. The Integrated Impact Indicator （13） and the h-index can be combined into the I3-type framework, yielding the publication vectorX= （X1, X2, X3） and the citation vector Y= （Yi, Y2, Y3） , the publication score 13X = X1 ＋X2 ＋X3 and the citation score 13Y= Y1 ＋Y2 ＋Y3, and alternative indicators, which could be developed to extend academic evaluation. The vector X and the score 13X represent the relative frequencies of the publications, while the vector Y and the score 13Y denote the relative frequencies of the citations. The h-based I3-type multivariate indicators provide multidimensional indicators： X1 measures publication score in the h-core （Xj and Y1 combination may measure core impact power）; Xz measures publication score in h-tail; Ys = Yl ＋Y3 measures citation score in h-core; Y2 measures citation score in h-tail; 13X does total publication score, and 13Y does total citation score. The empirical studies reveal that the b-core distribution is suitable to evaluate scholars, and the X1 and Y1 are applied to measure core impact power of universities, and 13X and I3Y are alternatives of jourual impact factor （JIF）. The multivariate indicators provide a multidimensional view of academic evaluation with using the advantages of both the h-index and I3. The publication vector X= （X1, X2, X3） and the citation vector Y = （Y1, Y2, Y3） with their elements, as well as the publication score I3X = X1 ＋X2 ＋X3 and the citation score I3Y= Y1 ＋Y2 ＋Y3, contribute multivariate indicators for academic evaluation. 5 figs. 4 tabs. 18 refs. 3 attached tabs.