713 search results - page 129 / 143 » A Learning Optimizer for a Federated Database Management Sys... |
PPDP
2010
Springer
14 years 7 months ago
2010
Springer
Given a set of Datalog rules, facts, and a query, answers to the query can be inferred bottom-up starting with the facts or top-down starting with the query. For efficiently answe...
185
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SIGMOD
2009
ACM
15 years 9 months ago
2009
ACM
Labeling schemes lie at the core of query processing for many XML database management systems. Designing labeling schemes for dynamic XML documents is an important problem that ha...
114
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UBIMOB
2009
ACM
15 years 2 months ago
2009
ACM
Wireless sensor networks are rapidly finding their way through a plethora of new applications like precision farming and forestry, with increasing network scale, system complexit...
162
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GIS
2004
ACM
15 years 10 months ago
2004
ACM
The R*-tree is a state-of-the-art spatial index structure. It has already found its way into commercial systems. The most important improvement of the R*-tree over the original R-...
181
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SIGMOD
2009
ACM
15 years 9 months ago
2009
ACM
Research has investigated mappings among data sources under two perspectives. On one side, there are studies of practical tools for schema mapping generation; these focus on algor...