318 search results - page 23 / 64 » Optimization of Query Streams Using Semantic Prefetching |
CORR
2011
Springer
13 years 2 months ago
2011
Springer
Query expansion is a functionality of search engines that suggests a set of related queries for a user-issued keyword query. Typical corpus-driven keyword query expansion approach...
PODS
2006
ACM
14 years 7 months ago
2006
ACM
Query containment is a fundamental algorithmic problem in database query processing and optimization. Under set semantics, the query-containment problem for conjunctive queries ha...
EDBT
2004
ACM
14 years 7 months ago
2004
ACM
Abstract. Recent years have witnessed an increasing interest in designing algorithms for querying and analyzing streaming data (i.e., data that is seen only once in a fixed order) ...
SSDBM
2003
IEEE
14 years 1 months ago
2003
IEEE
The widespread use of sensor networks presents revolutionary opportunities for life and environmental science applications. Many of these applications involve continuous queries t...
CIKM
2010
Springer
13 years 6 months ago
2010
Springer
In recent years, there has been an explosion of publicly available RDF and OWL data sources. In order to effectively and quickly answer queries in such an environment, we present...