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通过对源自《中文核心期刊要目总览》的理工农医类以及经济、历史、法律、哲学类期刊刊载论文的下载量统计,发现论文的下载量在论文中的分布具有一致趋势:随下载量的增多论文数比例较快地增大,增大到某一最大值后再缓慢减小直至最小。学科论文的下载频次分布可用对数正态分布函数表征。基于学科论文下载量在论文中的分布特征,提出了学科最可几下载量,用以表征学科论文的下载量水平,为论文下载量评价提供借鉴与参考。从论文节点入度分布的视角,探讨了期刊论文下载量分布的产生原因,作者认为下载量分布的形成主要受择优机制控制,并对下载频次与被引频次之间差别给出了解释。
According to the statistics of the downloads of the papers published in the journals of science, technology, agriculture, and economics, history, law and philosophy derived from the “Summary of Key Journals in China”, the distribution of dissertations in the dissertation shows a consistent trend in the dissertation. Increase in the proportion of the number of papers faster increases, increasing to a certain maximum and then slowly decrease until the minimum. Disciplinary dissertation frequency distribution can be logarithmically normal distribution function characterization. Based on the distributive characteristics of dissertations in dissertations, this dissertation puts forward the most downloads of Disciplines, which can be used to characterize the distributive levels of dissertations and provide reference for the dissertation downloads. From the perspective of the degree of dissertation node distribution, this paper discusses the reasons for the distribution of journal essay downloads. The authors believe that the formation of download distribution is mainly controlled by the optimal mechanism, and the differences between the download frequency and the cited frequency are explained.