Presentation 2016-04-21
On the Robustness of Networks with Skewed Degree Distributions under Strategic Node Protection
Yui Kazawa, Sho Tsugawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Previous studies on the robustness of networks against intentional attacks have suggested that protectinga small fraction of important nodes in a network significantly improves its robustness. In this paper, we analyzethe robustness of networks under several strategic node protection schemes. Strategic node protection schemesselect a small fraction of nodes as important nodes, using a network measure such as node centrality, and protectthe important nodes to prevent them from being removed by intentional attacks. Through extensive simulations, weshow that (1) strategic node protection significantly improves the robustness of networks with skewed degree distributions, (2) the efficiency of strategic node protection schemes is affected by the strength of community structureof the network being protected, and (3) strategic node protection based on betweenness centrality can effectivelyimprove the robustness of networks regardless of the strength of community structure.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Robustness / Node protection / Network attack / Community structure
Paper # CQ2016-2
Date of Issue 2016-04-14 (CQ)

Conference Information
Committee CS / CQ
Conference Date 2016/4/21(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English) SDN (Software-Defined Networking), NFV(Network Functions. Virtualization), Network Virtualization, Cloud, Service Quality, Contents Delivery, etc
Chair Toshinori Tsuboi(Tokyo Univ. of Tech.) / Kyoko Yamori(Asahi Univ.)
Vice Chair Tetsuya Yokotani(Kanazawa Inst. of Tech.) / Takanori Hayashi(NTT) / Hideyuki Shimonishi(NEC)
Secretary Tetsuya Yokotani(Hiroshima City Univ.) / Takanori Hayashi(NTT) / Hideyuki Shimonishi(NEC)
Assistant / Masahiro Yamamoto(OKI) / Bo GU(Waseda Univ.) / Hirantha Abeysekera(NTT)

Paper Information
Registration To Technical Committee on Communication Systems / Technical Committee on Communication Quality
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) On the Robustness of Networks with Skewed Degree Distributions under Strategic Node Protection
Sub Title (in English)
Keyword(1) Robustness
Keyword(2) Node protection
Keyword(3) Network attack
Keyword(4) Community structure
1st Author's Name Yui Kazawa
1st Author's Affiliation University of Tsukuba(Univ. of Tsukuba)
2nd Author's Name Sho Tsugawa
2nd Author's Affiliation University of Tsukuba(Univ. of Tsukuba)
Date 2016-04-21
Paper # CQ2016-2
Volume (vol) vol.116
Number (no) CQ-10
Page pp.pp.7-12(CQ),
#Pages 6
Date of Issue 2016-04-14 (CQ)