179 search results - page 10 / 36 » An LP-Based Heuristic for Optimal Planning |
VLDB
1994
ACM
14 years 24 days ago
1994
ACM
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...
EOR
2007
13 years 8 months ago
2007
Motivated by an underground mining operation at Kiruna, Sweden, we formulate a mixed integer program to schedule iron ore production over multiple time periods. Our optimization m...
ICDE
2012
IEEE
11 years 11 months ago
2012
IEEE
Abstract—This paper revisits the classical problem of multiquery optimization in the context of RDF/SPARQL. We show that the techniques developed for relational and semi-structur...
AIIA
2009
Springer
14 years 1 months ago
2009
Springer
In this paper a planning framework based on Ant Colony Optimization techniques is presented. Optimal planning is a very hard computational problem which has been coped with differe...
DCOSS
2011
Springer
12 years 8 months ago
2011
Springer
—Controlled sink mobility has been shown to be very beneficial in lifetime prolongation of wireless sensor networks (WSNs) by avoiding the typical hot-spot problem near the sink...