3969 search results - page 327 / 794 » Query Processing Using Ontologies |
137
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SIGMOD
2002
ACM
16 years 4 months ago
2002
ACM
Physical database design is important for query performance in a shared-nothing parallel database system, in which data is horizontally partitioned among multiple independent node...
139
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ICEBE
2005
IEEE
15 years 10 months ago
2005
IEEE
Electronic commerce is emerging as a major application area for database systems. A large number of e-commerce stores provide electronic product catalogs that allow customers to s...
171
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SAC
2003
ACM
15 years 9 months ago
2003
ACM
Query-by-example is the most popular query model for today’s image retrieval systems. A typical query image contains not only relevant objects (e.g., Eiffel Tower), but also ir...
126
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PVLDB
2008
15 years 4 months ago
2008
Many stream-processing systems enforce an order on data streams during query evaluation to help unblock blocking operators and purge state from stateful operators. Such in-order p...
148
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SIGMOD
2011
ACM
14 years 7 months ago
2011
ACM
Scheduling data processing workflows (dataflows) on the cloud is a very complex and challenging task. It is essentially an optimization problem, very similar to query optimizati...