25 search results - page 4 / 5 » Materialized Views in Probabilistic Databases for Informatio... |
WWW
2011
ACM
13 years 5 days ago
2011
ACM
The problem of answering SPARQL queries over virtual SPARQL views is commonly encountered in a number of settings, including while enforcing security policies to access RDF data, ...
SIGMOD
2010
ACM
13 years 10 months ago
2010
ACM
The probabilistic threshold query (PTQ) is one of the most common queries in uncertain databases, where all results satisfying the query with probabilities that meet the threshold...
EDBTW
2004
Springer
13 years 10 months ago
2004
Springer
Abstract. Peer-to-peer (P2P) computing is currently attracting enormous attention. In P2P systems a very large number of autonomous computing nodes (the peers) pool together their ...
ICDT
2009
ACM
14 years 6 months ago
2009
ACM
A technique called user views has recently been proposed to focus user attention on relevant information in response to provenance queries over workflow executions [1, 2]: Given u...
SACMAT
2005
ACM
13 years 10 months ago
2005
ACM
We investigate a generalization of the notion of XML security view introduced by Stoica and Farkas [17] and later refined by Fan et al. [8]. The model consists of access control ...