标准特征因子的特点与应用分析

The characateristic of the normalized eigenfactor and its usage

【目的】标准特征因子是JCR 2015公布的新指标,研究其特点有助于深化其应用。【方法】采用统计学方法与岭回归对标准特征因子与特征因子进行了比较分析。【结果】发现标准特征因子、特征因子的统计学特征比较接近,与其他文献计量指标的相关关系相似。标准特征因子与特征因子相似度极高。标准特征因子并没有提高指标的区分度,与其他文献计量指标的关系也相似。特征因子转换为标准特征的非线性转换是导致以上现象的根本原因。【结论】在期刊多属性评价中,不能同时选取这两个指标,应优先选取标准特征因子。

[ Purposes ] This paper aims to study the characteristic of the newly published normalized eigenfactor index of 2015 JCR. [Methods ] this paper used statistical methods and ridge regression to compare the normalized eigenfactor with the eigenfactor. I Findings] The results prove that the similarity between the normalized eigenfactor and the eigenfactor is extremely high. The normalized eigenfactor have no effect on the improvement of the distinction degree, and cannot support more information, which was resulted by the nonlinear transfer method. [ Conclusions ] The normalized eigenfactor is a more suitable index in academic journals＇ evaluation.