549 search results - page 44 / 110 » Data Expiration and Aggregate Queries |
117
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DASFAA
2003
IEEE
15 years 9 months ago
2003
IEEE
Data warehouses are of crucial importance to decision-making in competitive organizations. The fact that they store enormous quantities of data is a challenge in what concerns per...
160
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INFOCOM
2009
IEEE
15 years 11 months ago
2009
IEEE
Abstract—Stateless opportunistic forwarding is a simple faulttolerant distributed approach for data delivery and information querying in wireless ad hoc networks, where packets a...
144
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INFOCOM
2006
IEEE
15 years 10 months ago
2006
IEEE
— In this paper we consider the problem of query and search in a network, e.g., searching for a specific node or a piece of data. We limit our attention to the class of TTL (tim...
154
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CIKM
2006
Springer
15 years 8 months ago
2006
Springer
By providing an integrated and optimized support for user-defined aggregates (UDAs), data stream management systems (DSMS) can achieve superior power and generality while preservi...
140
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TMRA
2005
Springer
15 years 10 months ago
2005
Springer
Abstract. This paper describes a query algebra for tolog, a query language for Topic Maps inspired by Prolog and very similar to Datalog. The language is based on binding variables...