625 search results - page 1 / 125 » Genetic algorithms for large join query optimization |
GECCO
2007
Springer
13 years 10 months ago
2007
Springer
Genetic algorithms (GAs) have long been used for large join query optimization (LJQO). Previous work takes all queries as based on one granularity to optimize GAs and compares the...
FLAIRS
1998
13 years 5 months ago
1998
ICDT
1999
ACM
13 years 8 months ago
1999
ACM
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...
SIGMOD
2009
ACM
14 years 4 months ago
2009
ACM
With the proliferation of the RDF data format, engines for RDF query processing are faced with very large graphs that contain hundreds of millions of RDF triples. This paper addre...
ICDE
2008
IEEE
14 years 6 months ago
2008
IEEE
In this paper we address the problem of minimizing the response time of a multi-way join query using pipelined (inter-operator) parallelism, in a parallel or a distributed environ...