617 search results - page 20 / 124 » Semantic queries in databases: problems and challenges |
WIDM
2006
ACM
14 years 2 months ago
2006
ACM
The preservation of digital artifacts represents an unanswered challenge for the modern information society: XML and its query languages provide an effective environment to addre...
MMS
2008
13 years 8 months ago
2008
We address the challenge of semantic gap reduction for image retrieval through an improved SVM-based active relevance feedback framework, together with a hybrid visual and concept...
VLDB
1992
ACM
14 years 24 days ago
1992
ACM
New challenges to the database field brought about by the rapidly growing area of wireless personal communication are presented. Preliminary solutions to two of the major problems...
ESWS
2008
Springer
13 years 10 months ago
2008
Springer
The goal of this paper is to give an overview of the basics of the theory of RDF databases. We provide a formal definition of RDF that includes the features that distinguish this m...
DLOG
2003
13 years 10 months ago
2003
The Semantic Web initiative defines important challenges for knowledge representation and database systems. Recently, several standards for representation languages have been pro...