15 search results - page 2 / 3 » Containment and Minimization of RDF S Query Patterns |
PODS
2010
ACM
13 years 10 months ago
2010
ACM
For many problems arising in the setting of graph querying (such as finding semantic associations in RDF graphs, exact and approximate pattern matching, sequence alignment, etc.)...
ICDT
2005
ACM
13 years 11 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...
ICDE
2011
IEEE
12 years 9 months ago
2011
IEEE
—It is increasingly common to find graphs in which edges bear different types, indicating a variety of relationships. For such graphs we propose a class of reachability queries ...
ESWS
2008
Springer
13 years 7 months ago
2008
Springer
In this contribution a system is presented, which provides access to distributed data sources using Semantic Web technology. While it was primarily designed for data sharing and sc...
VLDB
2002
ACM
13 years 5 months ago
2002
ACM
With the rapid growth of XML-document traffic on the Internet, scalable content-based dissemination of XML documents to a large, dynamic group of consumers has become an important...