Braess's Paradox in Large Random Graphs

被引：19

作者：

Valiant, Gregory ^{[2
]}

Roughgarden, Tim ^{[1
]}

机构：

[1] Stanford Univ, Dept Comp Sci, Stanford, CA 94305 USA

[2] Univ Calif Berkeley, Div Comp Sci, Berkeley, CA 94720 USA

来源：

RANDOM STRUCTURES & ALGORITHMS | 2010年 / 37卷 / 04期

关键词：

Braess's Paradox; random graphs; selfish routing; traffic equilibria;

D O I：

10.1002/rsa.20325

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

Braess's Paradox is the counterintuitive fact that removing edges from a network with "selfish routing" can decrease the latency incurred by traffic in an equilibrium flow. We prove that Braess's Paradox is likely to occur in a natural random network model: with high probability, there is a traffic rate and a set of edges whose removal improves the latency of traffic in an equilibrium flow by a constant factor. (C) 2010 Wiley Periodicals, Inc. Random Struct. Alg., 37, 495-515, 2010

引用

页码：495 / 515

页数：21

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