109 search results - page 16 / 22 » Optimization Using Tuple Subsumption |
BTW
2007
Springer
14 years 1 months ago
2007
Springer
Abstract: Peer data management systems (PDMS) are a highly dynamic, decentralized infrastructure for large-scale data integration. They consist of a dynamic set of autonomous peers...
ICDE
2006
IEEE
14 years 8 months ago
2006
IEEE
Relational division, also known as small divide, is a derived operator of the relational algebra that realizes a many-to-one set containment test, where a set is represented as a ...
VLDB
2005
ACM
14 years 25 days ago
2005
ACM
Query optimizers in current database systems are designed to pick a single efficient plan for a given query based on current statistical properties of the data. However, different...
PDIS
1996
IEEE
13 years 11 months ago
1996
IEEE
Accessing data from numerous widely-distributed sources poses signi cant new challenges for query optimization and execution. Congestion and failures in the network can introduce ...
SAIG
2000
Springer
13 years 11 months ago
2000
Springer
Abstract. Functional languages are particularly well-suited to the implementation of interpreters for domain-specific embedded languages (DSELs). We describe an implemented techniq...