176 search results - page 15 / 36 » Additive-Disjunctive Heuristics for Optimal Planning |
ICDE
2012
IEEE
11 years 10 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...
PODS
2001
ACM
14 years 7 months ago
2001
ACM
Database systems frequently have to execute a set of related queries, which share several common subexpressions. Multi-query optimization exploits this, by finding evaluation plan...
SEMWEB
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. To direct automated Web service composition, it is compelling to provide a template, workflow or scaffolding that dictates the ways in which services can be composed. I...
DCOSS
2011
Springer
12 years 7 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...
AIPS
2009
13 years 8 months ago
2009
In this paper a planning framework based on Ant Colony Optimization techniques is presented. It is well known that finding optimal solutions to planning problems is a very hard co...