285 search results - page 40 / 57 » Optimization of Real Conjunctive Queries |
AMW
2009
13 years 8 months ago
2009
In data exchange, data are materialised from a source schema to a target schema, according to suitable source-to-target constraints. Constraints are also expressed on the target sc...
EMSOFT
2005
Springer
14 years 29 days ago
2005
Springer
Microservers are networked embedded devices that accept user tasks on demand and execute them on real world information collected by sensors. Sharing intermediate sensing and comp...
SC
2003
ACM
14 years 20 days ago
2003
ACM
We investigate runtime strategies for data-intensive applications that involve generalized reductions on large, distributed datasets. Our set of strategies includes replicated fi...
EDBT
2009
ACM
13 years 5 months ago
2009
ACM
In this work, we focus on managing scientific environmental data, which are measurement readings collected from wireless sensors. In environmental science applications, raw sensor...
VLDB
2004
ACM
14 years 23 days ago
2004
ACM
In data stream applications, data arrive continuously and can only be scanned once as the query processor has very limited memory (relative to the size of the stream) to work with...