708 search results - page 74 / 142 » A Genetic Algorithm for Database Query Optimization |
EDBT
2008
ACM
14 years 9 months ago
2008
ACM
Wireless broadcast is an efficient way for information dissemination due to its good scalability [10]. Existing works typically assume mobile devices, such as cell phones and PDAs...
DMSN
2005
ACM
13 years 10 months ago
2005
ACM
In this paper, we introduce a rotating interrogation technique for sensor networks called Whirlpool. Whirlpool provides opportunities to optimize data delivery in time-critical mo...
EDBT
1994
ACM
14 years 1 months ago
1994
ACM
Abstract. Good estimates of join result sizes are critical for query optimization in relational database management systems. We address the problem of incrementally obtaining accur...
SIGMOD
2004
ACM
14 years 9 months ago
2004
ACM
Peer data management systems (PDMS) offer a flexible architecture for decentralized data sharing. In a PDMS, every peer is associated with a schema that represents the peer's...
ICDT
2005
ACM
14 years 2 months ago
2005
ACM
We study the problem of rewriting queries using views in the presence of access patterns, integrity constraints, disjunction, and negation. We provide asymptotically optimal algori...