141 search results - page 21 / 29 » Equivalence of queries combining set and bag-set semantics |
APWEB
2006
Springer
13 years 11 months ago
2006
Springer
In the Semantic Web, RDF (Resource Description Framework) and RDF Schema are commonly used to describe metadata. There are a great many RDF data in current web, therefore, efficien...
OTM
2007
Springer
14 years 1 months ago
2007
Springer
: Two major problems in constructing data federations (for example, data warehouses and database federations) concern achieving and maintaining consistency and a uniform representa...
CIVR
2007
Springer
14 years 1 months ago
2007
Springer
Though both quantity and quality of semantic concept detection in video are continuously improving, it still remains unclear how to exploit these detected concepts as semantic ind...
EDBT
2004
ACM
14 years 7 months ago
2004
ACM
To effectively support today's global economy, database systems need to store and manipulate text data in multiple languages simultaneously. Current database systems do suppor...
ICDE
1993
IEEE
13 years 11 months ago
1993
IEEE
To add time su port to the relational model, both first normal form (fNF and non-INF appmches have maining within 1NF when time support is added may introduce data redundancy. The...