651 search results - page 42 / 131 » Algebraic Query Optimization for Distributed Top-k Queries |
ICDE
2007
IEEE
14 years 3 months ago
2007
IEEE
Partitioned query processing is an effective method to process continuous queries with large stateful operators in a distributed systems. This method typically partitions input da...
KR
1992
Springer
14 years 1 months ago
1992
Springer
While the task of answering queries from an arbitrary propositional theory is intractable in general, it can typicallybe performed e ciently if the theory is Horn. This suggests t...
SIGMOD
2007
ACM
14 years 9 months ago
2007
ACM
This paper extends relational processing and optimization to the FISQL/FIRA languages for dynamic schema queries over multidatabases. Dynamic schema queries involve the creation a...
ICDE
2008
IEEE
14 years 10 months ago
2008
IEEE
In this paper, we are concerned with the distributed monitoring of P2P systems. We introduce the P2P Monitor system and a new declarative language, namely P2PML, for specifying mo...
CORR
2008
Springer
13 years 9 months ago
2008
Springer
With the rise of XML as a standard for representing business data, XML data warehouses appear as suitable solutions for Web-based decision-support applications. In this context, i...