论文标题
文学使用的狭窄和科学论文的流动性限制
The narrowing of literature use and the restricted mobility of papers in the sciences
论文作者
论文摘要
这是一个辩论的问题，是否随着时间的流逝，学术文献的缩水比例是否会得到大多数参考。狭窄的文献用法如何影响科学思想的流通，这也不太了解。在这里，我们表明，随着时间的流逝，科学文献的利用遵循双重趋势：虽然至少几次引用了更多的文献，但引用也更多地集中在引文分布的顶部。与后一种趋势平行，论文的未来重要性越来越取决于其过去的引文表现。一个随机网络模型表明，引文浓度与引文性能的更大稳定性直接相关。提出的证据表明，引文影响的异质性日益增长限制了没有早期关注的研究文章的流动性。尽管从1970年的研究期开始就开始了集中度，但引用分散体显着表现出来，只有从1990年代中期，新鲜发表的论文的普及也有所增加。后来的这两个趋势都在这两种趋势背后，最有可能的是传播论文的先进信息技术。
It is a matter of debate whether a shrinking proportion of scholarly literature is getting most of the references over time. It is also less well understood how a narrowing literature usage would affect the circulation of ideas in the sciences. Here we show, that the utilization of scientific literature follows dual tendencies over time: while a larger proportion of literature is cited at least a few times, citations are also concentrating more on the top of the citation distribution. Parallel to the latter trend, a paper's future importance increasingly depends on its past citation performance. A random network model shows that the citation concentration is directly related to the greater stability of citation performance. The presented evidence suggests that the growing heterogeneity of citation impact restricts the mobility of research articles that do not gain attention early on. While concentration grows from the beginning of the studied period in 1970, citation dispersion manifest itself significantly only from the mid-1990s when the popularity of freshly published papers has also risen. Most likely, advanced information technologies to disseminate papers are behind both of these latter trends.
