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SIAMCOMP
2010
97views more  SIAMCOMP 2010»
13 years 7 months ago
Designing Network Protocols for Good Equilibria
Designing and deploying a network protocol determines the rules by which end users interact with each other and with the network. We consider the problem of designing a protocol t...
Ho-Lin Chen, Tim Roughgarden, Gregory Valiant
SIAMCOMP
2010
172views more  SIAMCOMP 2010»
13 years 3 months ago
More Algorithms for All-Pairs Shortest Paths in Weighted Graphs
In the first part of the paper, we reexamine the all-pairs shortest paths (APSP) problem and present a new algorithm with running time O(n3 log3 log n/ log2 n), which improves all...
Timothy M. Chan
SIAMCOMP
2010
88views more  SIAMCOMP 2010»
13 years 3 months ago
Hardness Amplification Proofs Require Majority
Hardness amplification is the fundamental task of converting a -hard function f : {0, 1}n {0, 1} into a (1/2 - )-hard function Amp(f), where f is -hard if small circuits fail to c...
Ronen Shaltiel, Emanuele Viola
SIAMCOMP
2010
93views more  SIAMCOMP 2010»
13 years 3 months ago
Tightening Nonsimple Paths and Cycles on Surfaces
We describe algorithms to compute the shortest path homotopic to a given path, or the shortest cycle freely homotopic to a given cycle, on an orientable combinatorial surface. Unli...
Éric Colin de Verdière, Jeff Erickso...
SIAMCOMP
2010
174views more  SIAMCOMP 2010»
13 years 7 months ago
On the Complexity of Nash Equilibria and Other Fixed Points
We reexamine what it means to compute Nash equilibria and, more generally, what it means to compute a fixed point of a given Brouwer function, and we investigate the complexity o...
Kousha Etessami, Mihalis Yannakakis