Sciweavers

454 search results - page 55 / 91
» On improving approximate solutions by evolutionary algorithm...
Sort
View
97
Voted
STOC
2006
ACM
131views Algorithms» more  STOC 2006»
16 years 1 months ago
On maximizing welfare when utility functions are subadditive
We consider the problem of maximizing welfare when allocating m items to n players with subadditive utility functions. Our main result is a way of rounding any fractional solution...
Uriel Feige
ANTSW
2008
Springer
15 years 3 months ago
Adaptive Particle Swarm Optimization
An adaptive particle swarm optimization (APSO) that features better search efficiency than classical particle swarm optimization (PSO) is presented. More importantly, it can perfor...
Zhi-hui Zhan, Jun Zhang
STOC
2004
ACM
107views Algorithms» more  STOC 2004»
16 years 1 months ago
Primal-dual algorithms for deterministic inventory problems
We consider several classical models in deterministic inventory theory: the single-item lot-sizing problem, the joint replenishment problem, and the multi-stage assembly problem. ...
Retsef Levi, Robin Roundy, David B. Shmoys
APPROX
2006
Springer
130views Algorithms» more  APPROX 2006»
15 years 5 months ago
Tight Results on Minimum Entropy Set Cover
In the minimum entropy set cover problem, one is given a collection of k sets which collectively cover an n-element ground set. A feasible solution of the problem is a partition o...
Jean Cardinal, Samuel Fiorini, Gwenaël Joret
ACL
1994
15 years 2 months ago
Optimizing the Computational Lexicalization of Large Grammars
The computational lexicalization of a grammar is the optimization of the links between lexicalized rules and lexical items in order to improve the quality of the bottom-up filteri...
Christian Jacquemin