颠覆性指数的稳定时间窗研究  

Research on the Stable Time Window of Disruption Index

作　　者：刘小慧 沈哲思 廖宇 朱曼曼[1,2] 杨立英 Liu Xiaohui;Shen Zhesi;Liao Yu;Zhu Manman;Yang Liying(National Science Library,Chinese Academy of Sciences,Bejjing 100190;Department of Library,Information and Archives Management,School of Economics and Management,University of Chinese Academy of Sciences,Beijing 100190)

机构地区：[1]中国科学院文献情报中心,北京100190 [2]中国科学院大学经济管理学院图书情报与档案管理系,北京100190

出　　处：《图书情报工作》2021年第18期49-57,共9页Library and Information Service

基　　金：国家自然科学基金项目“基于知识网络的创新性度量研究”(项目编号:71974017)研究成果之一。

摘　　要：[目的/意义]探索颠覆性指数的稳定时间窗,分析其学科差异,揭示颠覆性指数稳定度与被引半衰期、被引频次稳定度之间的关系,为各学科合理应用该指数提供时间窗参考。[方法/过程]分别计算22个学科在不同引文时间窗下的颠覆性指数稳定度,得到各学科颠覆性指数达到0.8稳定度所需的时间窗;进而分别分析颠覆性指数与被引半衰期、被引频次稳定时间窗之间的关系。[结果/结论]颠覆性指数达到0.8稳定度所需的时间窗存在较大学科差异;达到被引半衰期时,各学科的颠覆性指数稳定度均达到了0.8,可使用被引半衰期作为颠覆性指数计算的参考时间窗;学科特质和指标算法都是影响颠覆性指数稳定度的重要因素,受算法的影响,颠覆性指数一般会晚于被引频次达到较高稳定度。[Purpose/significance]Exploring the stable time window of disruption index and revealing the rela-tionship between the reliability of disruption index,cited half-life and the reliability of citation are to provide valid time window suggestions for its application in different disciplines.[Result/conclusion]The reliability of the dis-ruption index under the citation time window in different disciplines was calculated respectively,this paper obtained the needed time window for the reliability of disruption index reach to0.8,and the relationship between disruption index,cited half-life and the reliability of citation were analyzed respectively.[Result conclusion]There are big differences in disciplines among the needed time window for the reliability of disruption index reach to0.8;at the.time of reaching cited half-life,the reliability of disruption index in all disciplines has reached to 0.8,the cited half-life can be used as a reference for the time window of disruption index calculation;discipline characteristics and indi-cator algorithms are both important factors affecting the reliability of disruption index,but under the impact of the al-gorithm,the disruption index may achieve higher reliability after citation.

关 键 词：颠覆性指数 引文时间窗 引文指标 稳定度 学科差异 

分 类 号：G250[文化科学—图书馆学]