287 search results - page 10 / 58 » Optimization Techniques for Queries with Expensive Methods |
PPSN
2004
Springer
14 years 22 days ago
2004
Springer
Abstract. The paper describes an evolutionary algorithm for the general nonlinear programming problem using a surrogate model. Surrogate models are used in optimization when model ...
VLDB
1992
ACM
13 years 11 months ago
1992
ACM
Research in temporal databases has mainly focused on defining temporal data models by extending existing models, and developing access structures for temporal data. Little has bee...
WWW
2010
ACM
14 years 2 months ago
2010
ACM
The Semantic Web community, until now, has used traditional database systems for the storage and querying of RDF data. The SPARQL query language also closely follows SQL syntax. A...
SIGMOD
2005
ACM
14 years 7 months ago
2005
ACM
Searching for all occurrences of a twig pattern in an XML document is an important operation in XML query processing. Recently a holistic method TwigStack [2] has been proposed. T...
DMDW
2000
13 years 8 months ago
2000
A common optimization technique in the OLAP application domain is the use of summary aggregate data. For an appropriate support of analysis hot spots, we propose a query based agg...