6004 search results - page 319 / 1201 » Parallelizing query optimization |
103
Voted
WWW
2004
ACM
16 years 1 months ago
2004
ACM
A technical infrastructure for storing, querying and managing RDF data is a key element in the current semantic web development. Systems like Jena, Sesame or the ICS-FORTH RDF Sui...
200
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VLDB
2001
ACM
16 years 29 days ago
2001
ACM
The problem of answering queries using views is to find efficient methods of answering a query using a set of previously materialized views over the database, rather than accessing...
120
Voted
SIGMOD
2004
ACM
16 years 27 days 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
15 years 6 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...
100
Voted
VLDB
2004
ACM
15 years 6 months ago
2004
ACM
When a client submits a set of XPath queries to a XML database on a network, the set of answer sets sent back by the database may include redundancy in two ways: some elements may...