267 search results - page 2 / 54 » Constraint-Based XML Query Rewriting For Data Integration |
JODS
2006
13 years 4 months ago
2006
While providing a uniform syntax and a semistructured data model, XML does not express semantics but only structure such as nesting information. In this paper, we consider the prob...
ICDE
2007
IEEE
14 years 6 months ago
2007
IEEE
We study the problem of answering queries posed on virtual views of XML documents, a problem commonly encountered when enforcing XML access control and integrating data. We approa...
ADC
2008
Springer
13 years 6 months ago
2008
Springer
Many existing access controls use node filtering or querying rewriting techniques. These techniques require rather time-consuming processes such as parsing, labeling, pruning and/...
BDA
2001
13 years 6 months ago
2001
A Community Web portal is a set of tools for a community of people who want to share information on a certain domain via the Web. The backbone of this system is an ontology which ...
VLDB
2007
ACM
14 years 4 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...