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» A generalization of Euler's constant
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STOC
2005
ACM
113views Algorithms» more  STOC 2005»
14 years 9 months ago
Efficient testing of groups
We construct an efficient probabilistic algorithm that, given a finite set with a binary operation, tests if it is an abelian group. The distance used is an analogue of the edit d...
Katalin Friedl, Gábor Ivanyos, Miklos Santh...
STOC
2003
ACM
164views Algorithms» more  STOC 2003»
14 years 9 months ago
Approximate counting by dynamic programming
We give efficient algorithms to sample uniformly, and count approximately, the solutions to a zero-one knapsack problem. The algorithm is based on using dynamic programming to pro...
Martin E. Dyer
LICS
2007
IEEE
14 years 3 months ago
Separating DAG-Like and Tree-Like Proof Systems
We show that tree-like (Gentzen’s calculus) PK where all cut formulas have depth at most a constant d does not simulate cut-free PK. Generally, we exhibit a family of sequents t...
Phuong Nguyen
SOFSEM
2007
Springer
14 years 3 months ago
On Optimal Solutions for the Bottleneck Tower of Hanoi Problem
We study two aspects of a generalization of the Tower of Hanoi puzzle. In 1981, D. Wood suggested its variant, where a bigger disk may be placed higher than a smaller one if their ...
Yefim Dinitz, Shay Solomon
MMB
2004
Springer
120views Communications» more  MMB 2004»
14 years 2 months ago
Equilibrium Market Prices for Multi-Period Auctions of Internet Resources
Auctions are a well-established mechanism for efficient allocation of scarce resources and as such have already become a standard approach for pricing QoS-enabled future Internet ...
Peter Reichl, Stefan Wrzaczek