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108
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SIROCCO
2003
15 years 5 months ago
Polynomial-Time Computable Backup Tables for Shortest-Path Routing
For networks employing shortest-path routing, we introduce a new recovery scheme which needs only one backup routing table. By precomputing this backup table, the network recovers...
Hiro Ito, Kazuo Iwama, Yasuo Okabe, Takuya Yoshihi...
MICS
2007
88views more  MICS 2007»
15 years 3 months ago
Inversion of Analytic Functions via Canonical Polynomials: A Matrix Approach
An alternative to Lagrange inversion for solving analytic systems is our technique of dual vector fields. We implement this approach using matrix multiplication that provides a f...
Philip Feinsilver, René Schott
MST
2007
167views more  MST 2007»
15 years 3 months ago
The Complexity of Polynomial-Time Approximation
In 1996, Khanna and Motwani [KM96] proposed three logic-based optimization problems constrained by planar structure, and offered the hypothesis that these putatively fundamental ...
Liming Cai, Michael R. Fellows, David W. Juedes, F...
APPROX
2010
Springer
207views Algorithms» more  APPROX 2010»
15 years 5 months ago
Exploiting Concavity in Bimatrix Games: New Polynomially Tractable Subclasses
Abstract. We study the fundamental problem of computing an arbitrary Nash equilibrium in bimatrix games. We start by proposing a novel characterization of the set of Nash equilibri...
Spyros C. Kontogiannis, Paul G. Spirakis
89
Voted
SODA
2010
ACM
148views Algorithms» more  SODA 2010»
16 years 1 months ago
Limits on the Social Welfare of Maximal-In-Range Auction Mechanisms
Many commonly-used auction mechanisms are "maximal-in-range". We show that any maximalin-range mechanism for n bidders and m items cannot both approximate the social wel...
Dave Buchfuhrer, Chris Umans