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arXiv physics/0612122physics.soc-phcs.DLphysics.data-an
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利用网络流量的简单模型对科学出版物进行排序

Ranking Scientific Publications Using a Simple Model of Network Traffic

Dylan Walker, Huafeng Xie, Koon-Kiu Yan, Sergei Maslov

摘要:

考虑到引文网络的强烈老化特征,我们修改了Google的PageRank算法,首先将随机冲浪者随年龄呈指数分布,以支持最近的出版物。这个算法的输出,我们称之为CiteRank,被解释为研究人员如何找到新信息的简单模型中的个人出版物的近似流量。我们开发了一个分析的交通流的RPA类模型和优化我们的算法的参数,以达到最佳性能的理解。结果比较两个相当不同的引文网络:所有美国物理学会出版物和一套高能物理理论(hep-th)预印本。尽管这两个网络之间存在重大差异,但我们发现它们的CiteRank算法的最佳参数非常相似。

英文摘要:

To account for strong aging characteristics of citation networks, we modify Google's PageRank algorithm by initially distributing random surfers exponentially with age, in favor of more recent publications. The output of this algorithm, which we call CiteRank, is interpreted as approximate traffic to individual publications in a simple model of how researchers find new information. We develop an analytical understanding of traffic flow in terms of an RPA-like model and optimize parameters of our algorithm to achieve the best performance. The results are compared for two rather different citation networks: all American Physical Society publications and the set of high-energy physics theory (hep-th) preprints. Despite major differences between these two networks, we find that their optimal parameters for the CiteRank algorithm are remarkably similar.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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