2124 search results - page 262 / 425 » Aggregating time partitions |
244
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SIGMOD
2005
ACM
16 years 6 months ago
2005
ACM
One of the most common operations in analytic query processing is the application of an aggregate function to the result of a relational join. We describe an algorithm for computi...
158
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SIGMOD
2001
ACM
16 years 6 months ago
2001
ACM
Materialized views can provide massive improvements in query processing time, especially for aggregation queries over large tables. To realize this potential, the query optimizer ...
201
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AINA
2009
IEEE
16 years 1 months ago
2009
IEEE
Over the last few years, target tracking in wireless sensor networks has become a topic of particular interest. This paper presents a tracking system intended for deployment in di...
204
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SSDBM
2009
IEEE
16 years 1 months ago
2009
IEEE
Scientific experiments produce large volumes of data represented as complex objects that describe independent events such as particle collisions. Scientific analyses can be express...
182
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RTCSA
2009
IEEE
16 years 1 months ago
2009
IEEE
—Mobile sensors are widely deployed in Wireless Sensor Networks (WSNs) to satisfy emerging application requirements. Specifically, processing location dependent queries in mobile...