473 search results - page 69 / 95 » Mapping Maintenance for Data Integration Systems |
IJCSA
2008
13 years 7 months ago
2008
It is well known that transactional and analytical systems each require different database architecture. In general, the database structure of transactional systems is optimized f...
BDA
2001
13 years 9 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 ...
JCDL
2003
ACM
14 years 1 months ago
2003
ACM
The National Science Digital Library (NSDL), launched in December 2002, is emerging as a center of innovation in digital libraries as applied to education. As a part of this exten...
ICDE
2007
IEEE
14 years 9 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...
ECAI
1994
Springer
13 years 12 months ago
1994
Springer
For large problems the ATMS often becomes the main resource consumer in any reasoning system. We propose an architecture (the 2vATMS) that combines the advantages of two techniques...