Sciweavers

1647 search results - page 71 / 330
» Improved Randomized Approximation Algorithms for Lot-Sizing ...
Sort
View
ICCSA
2010
Springer
15 years 6 months ago
Efficient Algorithms for the 2-Center Problems
This paper achieves O(n3 log log n/ log n) time for the 2center problems on a directed graph with non-negative edge costs under the conventional RAM model where only arithmetic ope...
Tadao Takaoka
ISAAC
2004
Springer
115views Algorithms» more  ISAAC 2004»
15 years 10 months ago
Randomized Algorithms for Motif Detection
Motivation: Motif detection for DNA sequences has many important applications in biological studies, e.g., locating binding sites and regulatory signals, and designing genetic prob...
Lusheng Wang, Liang Dong, Hui Fan
STOC
2005
ACM
146views Algorithms» more  STOC 2005»
16 years 5 months ago
Approximation algorithms for combinatorial auctions with complement-free bidders
We exhibit three approximation algorithms for the allocation problem in combinatorial auctions with complement free bidders. The running time of these algorithms is polynomial in ...
Shahar Dobzinski, Noam Nisan, Michael Schapira
ICASSP
2008
IEEE
15 years 11 months ago
A fast approximate joint diagonalization algorithm using a criterion with a block diagonal weight matrix
We propose a new algorithm for Approximate Joint Diagonalization (AJD) with two main advantages over existing state-of-the-art algorithms: Improved overall running speed, especial...
Petr Tichavský, Arie Yeredor, Jan Nielsen
ICML
2010
IEEE
15 years 5 months ago
Restricted Boltzmann Machines are Hard to Approximately Evaluate or Simulate
Restricted Boltzmann Machines (RBMs) are a type of probability model over the Boolean cube {-1, 1}n that have recently received much attention. We establish the intractability of ...
Philip M. Long, Rocco A. Servedio