2492 search results - page 74 / 499 » Ontology-based Database Access |
EDBT
2004
ACM
14 years 10 months ago
2004
ACM
We study the problem of answering queries over sources with limited access patterns. The problem is to decide whether a given query Q is feasible, i.e., equivalent to an executable...
WWW
2003
ACM
14 years 3 months ago
2003
ACM
Current search engines generally employ link analysis techniques to web-page re-ranking. However, the same techniques are problematic in small webs, such as websites or intranet w...
AGENTLINK
2003
Springer
14 years 3 months ago
2003
Springer
Providing an integrated access to multiple heterogeneous sources is a challenging issue in global information systems for cooperation and interoperability. In the past, companies h...
ICDT
2001
ACM
14 years 2 months ago
2001
ACM
In information-integration systems, source relations often have limitations on access patterns to their data; i.e., when one must provide values for certain attributes of a relatio...
DEXAW
2004
IEEE
14 years 2 months ago
2004
IEEE
Web-based tourism information systems are more and more required to provide besides traditional tourism information about hotel facilities and infrastructure also cultural content...