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The rich statistical characteristics in peer-to-peer (p2p) network have recently attracted much research interest. This paper reveals the internal network statistical characteristics in the user network and resource network, both of which are abstracted from the real application downloading logs. The two-segment degree and weight distribution of user nodes indicate the dynamic of p2p users, and the similar power-law distribution of resource nodes shows the popularity diversity. Furthermore, we found that these two networks have the inherent cluster structure, only minority of clusters contain a large number of nodes, and the majority have fewer nodes in it. In user network, users in the same cluster have similar file-sharing interest, in contrast to the different user interest between clusters; meanwhile, there are obvious correlations between different resource categories in resource clusters.
[1] Liu F, Shan X M, Ren Y, Zhang J, Ma Z X 2004 Acta Phys. Sin. 53 273 (in Chinese) [刘 锋、 山秀明、 任 勇、 张 军、 马正新 2004 物理学报 53 273]
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[5] Wei W F 2009 Acta Phys. Sin. 58 4 (in Chinese) [尉伟峰 2009 物理学报 58 4]
[6] Guo J L 2010 Acta Phys. Sin. 59 6 (in Chinese) [郭进利 2010 物理学报 59 6]
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[12] Iamnitchi A, Ripeanu M, Foster I 2003 Info Com
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[18] Blischok T 1995 Chain Store Age Executive with Shopping Center Age 71 3
[19] Pan Z F, Wang X F 2006 Acta Phys. Sin. 55 8 (in Chinese) [潘灶烽、 汪小帆 2006 物理学报 55 8]
[20] Qin S, Dai G Z, Wang L, Fan M 2007 Acta Phys. Sin. 56 11 (in Chinese) [覃 森、 戴冠中、 王 林、 范 明 2007 物理学报 56 11]
[21] Xu Q X, Xu X J 2009 Chin. Phys. B 18 3
[22] Pu C L, Pei W J 2010 Acta Phys. Sin. 59 6 (in Chinese) [濮存来、 裴文江 2010 物理学报 59 6]
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[1] Liu F, Shan X M, Ren Y, Zhang J, Ma Z X 2004 Acta Phys. Sin. 53 273 (in Chinese) [刘 锋、 山秀明、 任 勇、 张 军、 马正新 2004 物理学报 53 273]
[2] Zhang P P, He Y, Zhou T, Su P P, Chang H, Zhou Y P, Wang B H, He D R 2006 Acta Phys. Sin. 55 1 (in Chinese) [张培培、 何 阅、 周 涛、 苏蓓蓓、 常 慧、 周月平、 汪秉宏、 何大韧 2006 物理学报 55 1]
[3] Wang L, Zhou S H, Yuan J, Ren Y, Shan X M 2007 Acta Phys. Sin. 56 36 (in Chinese) [王 磊、 周淑华、 袁 坚、 任 勇、 山秀明 2007 物理学报 56 36]
[4] Zhang H F, Michael S, Fu X C, Wang B H 2009 Chin. Phys. B 18 9
[5] Wei W F 2009 Acta Phys. Sin. 58 4 (in Chinese) [尉伟峰 2009 物理学报 58 4]
[6] Guo J L 2010 Acta Phys. Sin. 59 6 (in Chinese) [郭进利 2010 物理学报 59 6]
[7] Wang F, Moreno Y, Sun Y R 2006 Phys. Rev. E 73 036123
[8] Sarshar M, Roychowdhury V 2004 Phys. Rev. E 69 026101
[9] Yoon S, Lee S, Yook S H, Kim Y 2007 Phys. Rev. E 75 046114
[10] Lee S, Yook S H, Kim Y 2009 Phys. Rev. E 80 017102
[11] Daniel S, Reza R, Subhabrata S 2008 IEEE Trans. on Networking 16 2
[12] Iamnitchi A, Ripeanu M, Foster I 2003 Info Com
[13] Wang X F, Li X, Chen G R 2006 Complex Network Theory and Application (Beijing: Tsinghua Press) p10 (in Chinese) [汪小凡、李翔、陈关荣 2006 复杂网络理论及其应用 (北京: 清华大学出版社) 第10页]
[14] Barrat A, Barthélemy M, Pastor S R, Vespignani A 2004 Proc. Natl. Acad. Sci. U.S.A. 101 3747
[15] Newman M, Girvan M 2004 Phys. Rev. E 69 026113
[16] Clauset A, Newman M, Moore C 2004 Phys. Rev. E 70 066111
[17] Rosvall M, Sneppen K 2009 Phys. Rev. E 79 026111
[18] Blischok T 1995 Chain Store Age Executive with Shopping Center Age 71 3
[19] Pan Z F, Wang X F 2006 Acta Phys. Sin. 55 8 (in Chinese) [潘灶烽、 汪小帆 2006 物理学报 55 8]
[20] Qin S, Dai G Z, Wang L, Fan M 2007 Acta Phys. Sin. 56 11 (in Chinese) [覃 森、 戴冠中、 王 林、 范 明 2007 物理学报 56 11]
[21] Xu Q X, Xu X J 2009 Chin. Phys. B 18 3
[22] Pu C L, Pei W J 2010 Acta Phys. Sin. 59 6 (in Chinese) [濮存来、 裴文江 2010 物理学报 59 6]
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