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ICALP
2007
Springer
14 years 4 months ago
Universal Algebra and Hardness Results for Constraint Satisfaction Problems
We present algebraic conditions on constraint languages Γ that ensure the hardness of the constraint satisfaction problem CSP(Γ) for complexity classes L, NL, P, NP and ModpL. Th...
Benoit Larose, Pascal Tesson
COMPGEOM
2006
ACM
14 years 3 months ago
Minimum-cost coverage of point sets by disks
We consider a class of geometric facility location problems in which the goal is to determine a set X of disks given by their centers (tj) and radii (rj) that cover a given set of...
Helmut Alt, Esther M. Arkin, Hervé Brö...
CP
2005
Springer
14 years 3 months ago
2-Way vs. d-Way Branching for CSP
Abstract. Most CSP algorithms are based on refinements and extensions of backtracking, and employ one of two simple “branching schemes”: 2-way branching or d-way branching, fo...
Joey Hwang, David G. Mitchell
CRYPTO
2005
Springer
163views Cryptology» more  CRYPTO 2005»
14 years 3 months ago
On the Generic Insecurity of the Full Domain Hash
The Full-Domain Hash (FDH) signature scheme [3] forms one the most basic usages of random oracles. It works with a family F of trapdoor permutations (TDP), where the signature of m...
Yevgeniy Dodis, Roberto Oliveira, Krzysztof Pietrz...
STACS
2005
Springer
14 years 3 months ago
Kolmogorov-Loveland Randomness and Stochasticity
An infinite binary sequence X is Kolmogorov-Loveland (or KL) random if there is no computable non-monotonic betting strategy that succeeds on X in the sense of having an unbounde...
Wolfgang Merkle, Joseph S. Miller, André Ni...