179 search results - page 10 / 36 » An LP-Based Heuristic for Optimal Planning |
VLDB
1994
ACM
15 years 1 months 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
14 years 9 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
13 years 1 days 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
15 years 2 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...
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DCOSS
2011
Springer
13 years 9 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...