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» A Method for Proving Observational Equivalence
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ACISP
2001
Springer
14 years 1 months ago
Private Information Retrieval Based on the Subgroup Membership Problem
Abstract. Many algorithmic problems, which are used to prove the security of a cryptographic system, are shown to be characterized as the subgroup membership problem. We then apply...
Akihiro Yamamura, Taiichi Saito
APPROX
2010
Springer
213views Algorithms» more  APPROX 2010»
13 years 10 months ago
Constructive Proofs of Concentration Bounds
We give a simple combinatorial proof of the Chernoff-Hoeffding concentration bound [Che52, Hoe63], which says that the sum of independent {0, 1}-valued random variables is highly ...
Russell Impagliazzo, Valentine Kabanets
IJAC
2006
93views more  IJAC 2006»
13 years 8 months ago
On Word Reversing in Braid Groups
It has been conjectured that in a braid group, or more generally in a Garside group, applying any sequence of monotone equivalences and word reversings can increase the length of a...
Patrick Dehornoy, Bert Wiest
CONCURRENCY
2000
133views more  CONCURRENCY 2000»
13 years 8 months ago
OpenMP versus threading in C/C++
When comparing OpenMP to other parallel programming models, it is easier to choose between OpenMP and MPI than between OpenMP and POSIX Threads (Pthreads). With languages like C a...
Bob Kuhn, Paul Petersen, Eamonn O'Toole
SIAMMA
2010
90views more  SIAMMA 2010»
13 years 3 months ago
A General Proximity Analysis of Nonlinear Subdivision Schemes
In recent work nonlinear subdivision schemes which operate on manifold-valued data have been successfully analyzed with the aid of so-called proximity conditions bounding the diffe...
Philipp Grohs