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arXiv 1104.4209physics.soc-phcs.DLcs.SI
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引文网络中的聚类模型

Modeling the clustering in citation networks

Fu-Xin Ren, Xue-Qi Cheng, Hua-Wei Shen

摘要:

对于引文网络的研究,一个具有挑战性的问题是建模的高聚类。现有的研究表明,对高聚类进行建模的有前途的方法是复制策略,即,论文复制其相邻论文的参考文献作为自己的参考文献。然而,这一系列模型严重低估了在真实引文网络中观察到的丰富三角形的数量,因此无法很好地模拟高聚类。在本文中,我们指出,现有的模型的失败在于,他们没有捕捉到现有的文件之间的连接模式。通过利用这种连接模式所指示的知识,我们进一步提出了一个新的模型,在引文网络中的高聚类。在两个真实引文网络上的实验表明,该模型不仅能再现传统模型的幂律度分布,而且能再现真实网络中的三角形个数、高聚类系数和共引簇的大小分布.

英文摘要:

For the study of citation networks, a challenging problem is modeling the high clustering. Existing studies indicate that the promising way to model the high clustering is a copying strategy, i.e., a paper copies the references of its neighbour as its own references. However, the line of models highly underestimates the number of abundant triangles observed in real citation networks and thus cannot well model the high clustering. In this paper, we point out that the failure of existing models lies in that they do not capture the connecting patterns among existing papers. By leveraging the knowledge indicated by such connecting patterns, we further propose a new model for the high clustering in citation networks. Experiments on two real world citation networks, respectively from a special research area and a multidisciplinary research area, demonstrate that our model can reproduce not only the power-law degree distribution as traditional models but also the number of triangles, the high clustering coefficient and the size distribution of co-citation clusters as observed in these real networks.

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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