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作 者:冯小东 罗简凡 Feng Xiaodong;Luo Jianfan(School of Information Management,Sun Yat-sen University,Guangzhou 510006,China)
出 处:《现代情报》2025年第5期126-138,共13页Journal of Modern Information
基 金:广州市基础与应用基础研究项目“基于全文本挖掘的科技论文作者合作模式研究”(项目编号:2024A04J4393)。
摘 要:[目的/意义]梳理并界定引文扩散深度与广度概念,探究论文发表早期引文扩散深度与广度特征对后期扩散强度的影响,以丰富对论文早期被引特征与后期被引关联机制的解释。[方法/过程]采集50个学科类别各3本期刊于2013年发表的论文题录数据及其早期施引文献题录数据,构建目标论文的早期个体引文网络;定义引文扩散深度为引文平均级联深度,基于布里渊指数从学科广度、地域广度和作者广度3个维度定义引文扩散广度;使用负二项回归模型和双重机器学习(DDML)方法对早期引文扩散深度和广度对论文后期扩散强度的影响关系进行分析。[结果/结论]早期引文扩散深度在2年和3年引文窗口下均表现出了对后期扩散强度的显著负向影响,而早期引文扩散学科广度在两个引文窗口下均表现出对后期扩散强度的正向影响;地域广度在2年引文窗口下表现出对论文后期扩散强度的正向影响,在3年引文窗口下则未表现出显著性;早期引文扩散作者广度对于低被引论文组表现出与论文后期扩散强度的显著正向关系,但对于高被引论文组则为负向影响关系。[Purpose/Significance]This study sorts out and defines the concepts of citation diffusion depth and breadth,and explores the effects of citation diffusion depth and breadth characteristics in the earlier stages of a paper's publication on the citation diffusion intensity in the later stages,in order to enrich the explanation of the mechanism of correlating the characteristics of a paper's earlier citations with its later citations.[Method/Process]This study collected the bibliographic data of scientific papers published in 3 journals in 2013 from each of 50 subject categories,as well as the bibliographic data of their earlier citing literatures,to construct earlier ego citation networks for the target papers.The paper defined the citation diffusion depth as the average cascade depth of citations and the citation diffusion breadth based on Brillouin's Index from three dimensions:discipline breadth,regional breadth,and author breadth.And the paper used a negative binomial regression model and Double/De-biased Machine Learning method(DDML)to analyze the relationship between the depth and breadth of earlier citation diffusion and the later diffusion intensity of papers.[Result/Conclusion]Earlier citation diffusion depth shows a significant negative effect on the later diffusion intensity under both 2-year and 3-year citation windows,while earlier citation diffusion discipline breadth shows a positive effect on later diffusion intensity under both citation windows.Regional breadth shows a positive effect on later diffusion intensity of papers under the 2-year citation window,but doesn't show significance under the 3-year citation window.Author breadth shows a significant positive effect on papers in low-cited group,but has a negative impact on papers in high-cited group.
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