%0 Conference Proceedings %T Evaluation of Topological Vulnerability of the Internet under Regional Failures %+ National University of Defense Technology [China] %+ Yangtze Delta Region Institute of Tsinghua University [Zhejiang] %A Peng, Wei %A Li, Zimu %A Su, Jinshu %A Dong, Muwei %Z Part 2: Workshop %< avec comité de lecture %( Lecture Notes in Computer Science %B 1st Availability, Reliability and Security (CD-ARES) %C Vienna, Austria %Y A Min Tjoa %Y Gerald Quirchmayr %Y Ilsun You %Y Lida Xu %I Springer %3 Availability, Reliability and Security for Business, Enterprise and Health Information Systems %V LNCS-6908 %P 164-175 %8 2011-08-22 %D 2011 %R 10.1007/978-3-642-23300-5_13 %K network topology %K vulnerability %K regional failure %K critical distance %K algorithm %Z Computer Science [cs] %Z Humanities and Social Sciences/Library and information sciencesConference papers %X Natural disasters often lead to regional failures which can fail down network nodes and links co-located in a large geographical area. It will be beneficial to improve the resilience of a network by assessing its vulnerability under regional failures. In this paper, we propose the concept of α-critical-distance to evaluate the importance of a network node in the geographical space with a given failure impact ratio α. Theoretical analysis and a polynomial time algorithm to find the minimal α-critical-distance of a network are presented. Using real Internet topology data, we conduct experiments to compute the minimal α-critical-distances for different networks. The computational results demonstrate the differences of vulnerability of different networks. We also find that with the same impact ratio α, the studied topologies have smaller α-critical-distances when the network performance is measured by network efficiency than giant component size. %G English %Z TC 8 %Z WG 8.4 %Z WG 8.9 %2 https://inria.hal.science/hal-01590391/document %2 https://inria.hal.science/hal-01590391/file/978-3-642-23300-5_13_Chapter.pdf %L hal-01590391 %U https://inria.hal.science/hal-01590391 %~ SHS %~ IFIP-LNCS %~ IFIP %~ IFIP-TC %~ IFIP-WG %~ IFIP-TC8 %~ IFIP-CD-ARES %~ IFIP-WG8-4 %~ IFIP-WG8-9 %~ IFIP-LNCS-6908