137 search results - page 7 / 28 » Query optimization for ontology-based information integratio... |
SIGMOD
1995
ACM
13 years 10 months ago
1995
ACM
Text is a pervasive information type, and many applications require querying over text sources in addition to structured data. This paper studies the problem of query processing i...
WEBDB
2000
Springer
13 years 10 months ago
2000
Springer
Rewriting queries using views is a powerful technique that has applications in data integration, data warehousing and query optimization. Query rewriting in relational databases i...
IIWAS
2004
13 years 8 months ago
2004
Access to different and remote sources with heterogeneous formats is one of the most important challenges in Enterprise Information Integration. Even though there exists an increa...
WWW
2004
ACM
14 years 7 months ago
2004
ACM
Semantic Web technology is intended for the retrieval, collection, and analysis of meaningful data with significant automation afforded by machine understandability of data [1]. A...
ASWC
2006
Springer
13 years 9 months ago
2006
Springer
Abstract. We propose a conceptual model for semantic search and implement it in security access control. The model provides security access control to extend the search capabilitie...