344 search results - page 39 / 69 » A Semantic Approach to Query Rewriting for Integrated XML Da... |
DASFAA
2007
IEEE
14 years 1 months ago
2007
IEEE
Abstract. Warehousing heterogeneous, dynamic biological data is a key technique for biological data integration as it greatly improves performance. However, it requires complex mai...
ADBIS
2007
Springer
14 years 1 months ago
2007
Springer
The exponential growth of the web and the extended use of database management systems in widely distributed information systems has brought to the fore the need for seamless interc...
BXML
2003
13 years 9 months ago
2003
: The integration of heterogenous web sources is still a big challenge. One approach to deal with integration problems is the usage of domain knowledge in form of vocabularies or o...
SSDBM
2008
IEEE
14 years 2 months ago
2008
IEEE
We propose an automatic method for modeling a relational database that uses SQL triggers and foreign-keys to efficiently answer positive semantic queries about ground instances for...
EDBT
2006
ACM
14 years 7 months ago
2006
ACM
In authorization-transparent access control, users formulate their queries against the database schema rather than against authorization views that transform and hide data. The Tru...