313 search results - page 4 / 63 » Semantic Query Optimization for Methods in Object-Oriented D... |
CIKM
1998
Springer
13 years 10 months ago
1998
Springer
In this paper, a signature file method for indexing document database systems is presented. For this purpose, the concept of presentative word hierarchy is introduced, based on whi...
SIGMOD
1987
ACM
13 years 9 months ago
1987
ACM
SIGMOD
1996
ACM
13 years 10 months ago
1996
ACM
Object-Relational and Object-Oriented DBMSs allow users to invoke time-consuming ("expensive") methods in their queries. When queries containing these expensive methods a...
SIGMOD
2003
ACM
14 years 6 months ago
2003
ACM
Modern database systems provide not only powerful data models but also complex query languages supporting powerful features such as the ability to create new database objects and ...
DEXAW
2007
IEEE
14 years 10 days ago
2007
IEEE
The semantic web represents meta-data as a relation of triples using the RDF data model. We have developed a virtual repository system that enables to process queries to RDF views...