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ICALP
2007
Springer
14 years 1 months ago
Parameterized Approximability of the Disjoint Cycle Problem
Abstract. We give an fpt approximation algorithm for the directed vertex disjoint cycle problem. Given a directed graph G with n vertices and a positive integer k, the algorithm co...
Martin Grohe, Magdalena Grüber
CRYPTO
2008
Springer
134views Cryptology» more  CRYPTO 2008»
13 years 9 months ago
Noninteractive Statistical Zero-Knowledge Proofs for Lattice Problems
We construct noninteractive statistical zero-knowledge (NISZK) proof systems for a variety of standard approximation problems on lattices, such as the shortest independent vectors...
Chris Peikert, Vinod Vaikuntanathan
TCS
2002
13 years 7 months ago
The chords' problem
The chords' problem is a variant of an old problem of computational geometry: given a set of points of n , one can easily build the multiset of the distances between the poi...
Alain Daurat, Yan Gérard, Maurice Nivat
INFORMATICALT
2007
104views more  INFORMATICALT 2007»
13 years 7 months ago
Key Agreement Protocol (KAP) Using Conjugacy and Discrete Logarithm Problems in Group Representation Level
The key agreement protocol based on infinite non-commutative group presentation and representation levels is proposed. Two simultaneous problems in group representation level are ...
Eligijus Sakalauskas, Povilas Tvarijonas, Andrius ...
CORR
2011
Springer
172views Education» more  CORR 2011»
13 years 2 months ago
Possibilities and impossibilities in Kolmogorov complexity extraction
Randomness extraction is the process of constructing a source of randomness of high quality from one or several sources of randomness of lower quality. The problem can be modeled ...
Marius Zimand