1160 search results - page 12 / 232 » Query Processing and Optimization for Pictorial Query Trees |
CIKM
2007
Springer
14 years 5 months ago
2007
Springer
Spatial queries for extracting data from wireless sensor networks are important for many applications, such as environmental monitoring and military surveillance. One such query i...
SIGMOD
2008
ACM
13 years 10 months ago
2008
ACM
Tree pattern queries (TPQs) provide a natural and easy formalism to query tree-structured XML data, and the efficient processing of such queries has attracted a lot of attention. ...
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ICDE
2003
IEEE
15 years 8 days ago
2003
IEEE
This paper addresses issues related to containment join processing in tree-structured data such as XML documents. A containment join takes two sets of XML node elements as input a...
ICDE
2012
IEEE
12 years 1 months ago
2012
IEEE
—Many companies now routinely run massive data analysis jobs – expressed in some scripting language – on large clusters of low-end servers. Many analysis scripts are complex ...
VLDB
2002
ACM
13 years 10 months ago
2002
ACM
Query optimization is a computationally intensive process, especially for complex queries. We present here a tool, called PLASTIC, that can be used by query optimizers to amortize...