712 search results - page 18 / 143 » Decoupled Query Optimization for Federated Database Systems |
ADBIS
2004
Springer
15 years 2 months ago
2004
Springer
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...
DBISP2P
2003
Springer
15 years 2 months ago
2003
Springer
Databases have employed a schema-based approach to store and retrieve structured data for decades. For peer-to-peer (P2P) networks, similar approaches are just beginning to emerge,...
DEXAW
2005
IEEE
15 years 3 months ago
2005
IEEE
We present the first prototype of INDUS (Intelligent Data Understanding System), a federated, query-centric system for information integration and knowledge acquisition from dist...
187
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ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
The typical workload in a database system consists of a mixture of multiple queries of different types, running concurrently and interacting with each other. Hence, optimizing perf...
160
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VLDB
2005
ACM
15 years 9 months ago
2005
ACM
Efficient querying of XML streams will be one of the fundamental features of next-generation information systems. In this paper we propose the TurboXPath path processor, which acce...