Sciweavers

105 search results - page 3 / 21
» A Two Layered Approach for Querying Integrated XML Sources
Sort
View
SIGMOD
2004
ACM
163views Database» more  SIGMOD 2004»
14 years 5 months ago
Constraint-Based XML Query Rewriting For Data Integration
We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and this target schema, and given that the data is at...
Cong Yu, Lucian Popa
ICDE
2005
IEEE
126views Database» more  ICDE 2005»
14 years 7 months ago
A Probabilistic XML Approach to Data Integration
In mobile and ambient environments, devices need to become autonomous, managing and resolving problems without interference from a user. The database of a (mobile) device can be s...
Maurice van Keulen, Ander de Keijzer, Wouter Alink
BTW
2005
Springer
177views Database» more  BTW 2005»
13 years 11 months ago
Adaptive XML Access Control Based on Query Nesting, Modification and Simplification
: Access control is an important aspect in guaranteeing data privacy within XML data sources which are accessed by users with different access rights. The goal of predicative acces...
Stefan Böttcher, Rita Steinmetz
CATA
2003
13 years 7 months ago
Query Processing the Heterogeneous Information Sources using Ontology-based Approach
The problems of accessing and integrating heterogeneous information sources are becoming centerstage problems. One problem arising from accessing heterogeneous sources is semantic...
Ngamnij Arch-int, Yuefeng Li, Paul Roe, Peraphon S...
CIA
2001
Springer
13 years 10 months ago
Supporting Information Integration with Autonomous Agents
The large amount of information that is spread over the Internet is an important resource for all people but also introduces some issues that must be faced. The dynamism and the un...
Sonia Bergamaschi, Giacomo Cabri, Francesco Guerra...