96 search results - page 7 / 20 » Incox - A Language for XML Integrity Constraints Description |
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, whe...
IIWAS
2004
13 years 8 months ago
2004
It is a fact that many XML query languages lack support for update operations. Those that have minimal support do not concern with preserving documents' constraints, and cons...
EDBT
2012
ACM
11 years 9 months ago
2012
ACM
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...
SACMAT
2006
ACM
14 years 1 months ago
2006
ACM
In this paper we propose an access control model for the Resource Description Framework (RDF). We argue that existing access control models, like the ones developed for securing e...
WSC
2007
13 years 9 months ago
2007
Using models in different contexts poses major integration challenges, ranging from technical to conceptual levels. Independently of each other developed model components cannot b...