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2015 | OriginalPaper | Chapter

Excluding Braess’s Paradox in Nonatomic Selfish Routing

Authors : Xujin Chen, Zhuo Diao, Xiaodong Hu

Published in: Algorithmic Game Theory

Publisher: Springer Berlin Heidelberg

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Abstract

Braess’s paradox exposes a counterintuitive phenomenon that when travelers selfishly choose their routes in a network, removing links can improve overall network performance. Under the model of nonatomic selfish routing, we characterize the topologies of k-commodity undirected and directed networks in which Braess’s paradox never occurs. Our results generalize Milchtaich’s series-parallel characterization for the single-commodity undirected case.

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Footnotes
1
We remark that the definition of paradox-ridden network here is a substantial relaxation the ones given by Roughgarden [11] and Fotakis et al. [4], which admit instances suffering from the most severe performance loss in terms of Braess’s paradox.
 
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Metadata
Title
Excluding Braess’s Paradox in Nonatomic Selfish Routing
Authors
Xujin Chen
Zhuo Diao
Xiaodong Hu
Copyright Year
2015
Publisher
Springer Berlin Heidelberg
DOI
https://doi.org/10.1007/978-3-662-48433-3_17

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