东北大学学报:自然科学版 ›› 2016, Vol. 37 ›› Issue (12): 1691-1695.DOI: 10.12068/j.issn.1005-3026.2016.12.005

• 信息与控制 • 上一篇    下一篇

Internet分形特征研究

李鹤群, 徐久强, 王进法, 赵海   

  1. (东北大学 计算机科学与工程学院, 辽宁 沈阳110169)
  • 收稿日期:2015-07-24 修回日期:2015-07-24 出版日期:2016-12-15 发布日期:2016-12-23
  • 通讯作者: 李鹤群
  • 作者简介:李鹤群(1989-),男,辽宁铁岭人,东北大学博士研究生; 徐久强(1966-),男,辽宁北镇人,东北大学教授; 赵海(1959-),男,辽宁沈阳人,东北大学教授,博士生导师.
  • 基金资助:
    国家科技支撑计划项目(2012BAH82F04); 辽宁省科学技术计划项目(2015401039).

Research on Fractal Property of Internet

LI He-qun, XU Jiu-qiang, WANG Jin-fa, ZHAO Hai   

  1. School of Computer Science & Engineering, Northeastern University, Shenyang 110169, China.
  • Received:2015-07-24 Revised:2015-07-24 Online:2016-12-15 Published:2016-12-23
  • Contact: LI He-qun
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摘要: 采用k-核分解算法对Internet分形特征进行研究.对高核区间和低核区间拟合结果的差异进行分析,提出Internet分形特征与其结构的层次性存在关联的猜想.随后,从删边数、删边比例和子网分布三个角度对k-核分解过程进行观察,确定Internet核心层与边缘层的分割边界,并利用骨架树理论研究Internet的层次分形特征.最后,从度分布指数、同配系数和结构熵等常见统计角度对Internet部分与整体,以及部分与部分之间的关系进行观察.观察表明,在以上统计角度,Internet边缘子网可以表征网络整体.

关键词: 复杂网络, Internet, 分形, k-核分解, 层次分形

Abstract: The k-core decomposition algorithm was applied to the study of the Internet fractal property. During the study, the difference of fitting results between high-core region and low-core region was analyzed, and a conjecture was proposed that Internet fractal is related to its hierarchical structure. Subsequently, the k-core decomposition process was observed from three aspects: the number and ratio of deleted edges, and subnets distribution. A partition boundary was found which was useful to distinguish core and periphery, then the Internet fractal hierarchy was studied with the help of the skeleton theory. Finally, relations between part and whole, part and part were observed from degree distribution exponent, assortativity coefficient, and entropy. The observations show that the subnets in the Internet edge can characterize the network from the statistics above.

Key words: complex networks, Internet, fractal, k-core decomposition, fractal hierarchy

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