14518 search results - page 2674 / 2904 » Two Problems for Sophistication |
220
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SIGMOD
2008
ACM
16 years 4 months ago
2008
ACM
The need for high availability and performance in data management systems has been fueling a long running interest in database replication from both academia and industry. However...
196
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SIGMOD
2008
ACM
16 years 4 months ago
2008
ACM
Schema mappings are logical assertions that specify the relationships between a source and a target schema in a declarative way. The specification of such mappings is a fundamenta...
211
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SIGMOD
2007
ACM
16 years 4 months ago
2007
ACM
We consider in this paper a class of Publish-Subscribe (pub-sub) systems called topic-based systems, where users subscribe to topics and are notified on events that belong to thos...
214
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SIGMOD
2007
ACM
16 years 4 months ago
2007
ACM
Sensor networks are widely used in many applications for collecting information from the physical environment. In these applications, it is usually necessary to track the relation...
210
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SIGMOD
2007
ACM
16 years 4 months ago
2007
ACM
Sketching techniques can provide approximate answers to aggregate queries either for data-streaming or distributed computation. Small space summaries that have linearity propertie...