783 search results - page 121 / 157 » Improved approximation algorithms for the freeze-tag problem |
JGO
2010
13 years 3 months ago
2010
The best known method to find exact or at least -approximate solutions to polynomial programming problems is the spatial Branch-and-Bound algorithm, which rests on computing lower...
SIAMSC
2011
13 years 3 months ago
2011
We develop an algebraic multigrid (AMG) setup scheme based on the bootstrap framework for multiscale scientific computation. Our approach uses a weighted least squares definition...
AAAI
1997
13 years 10 months ago
1997
The use of heuristics as a means to improve constraint solver performance has been researched widely. However, most work has been on problem-independentheuristics (e.g., variable ...
IPPS
2006
IEEE
14 years 2 months ago
2006
IEEE
Wireless mesh networks recently emerge as a flexible, low-cost and multipurpose networking platform with wired infrastructure connected to the Internet. A critical issue in mesh ...
KDD
2006
ACM
14 years 9 months ago
2006
ACM
In this work we focus on the problem of frequent itemset mining on large, out-of-core data sets. After presenting a characterization of existing out-of-core frequent itemset minin...