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RSA
2000
170views more  RSA 2000»
15 years 6 months ago
Delayed path coupling and generating random permutations
We analyze various stochastic processes for generating permutations almost uniformly at random in distributed and parallel systems. All our protocols are simple, elegant and are b...
Artur Czumaj, Miroslaw Kutylowski
SIAMIS
2010
378views more  SIAMIS 2010»
15 years 1 months ago
Global Interactions in Random Field Models: A Potential Function Ensuring Connectedness
Markov random field (MRF) models, including conditional random field models, are popular in computer vision. However, in order to be computationally tractable, they are limited to ...
Sebastian Nowozin, Christoph H. Lampert
ECCC
2010
103views more  ECCC 2010»
15 years 6 months ago
Time-Space Efficient Simulations of Quantum Computations
We give two time- and space-efficient simulations of quantum computations with intermediate measurements, one by classical randomized computations with unbounded error and the oth...
Dieter van Melkebeek, Thomas Watson
CORR
2000
Springer
100views Education» more  CORR 2000»
15 years 6 months ago
Perfect simulation from the Quicksort limit distribution
The weak limit of the normalized number of comparisons needed by the Quicksort algorithm to sort n randomly permuted items is known to be determined implicitly by a distributional...
Luc Devroye, James Allen Fill, Ralph Neininger
IPL
2000
146views more  IPL 2000»
15 years 6 months ago
Better approximations for max TSP
We combine two known polynomial time approximation algorithms for the maximum traveling salesman problem to obtain a randomized algorithm which outputs a solution with expected va...
Refael Hassin, Shlomi Rubinstein