【摘要】 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。更多还原

【Abstract】 Basing on the data of full text download capacity from journals of science, Engineering, Agriculture, medicine,law, economics, history, philosophy and so on, we find that the full text download distribution in journal paper certainsubjects, presents basic consistent, the frequency distributions of paper download can be described by the Log-normalfunction. The most probable download count is introduced to present the level of the paper download capacity of a subject.It may provide one reference to the download indicator in evaluating the academic influence of paper or download level ofsome subject paper. By the perspective on in-degree of journal paper, frequency distribution of paper download may beconnected with the main control of the preferential attachment. The reason of the difference between the download amountand the citation amount of journal paper is provided.更多还原