617 search results - page 56 / 124 » Semantic queries in databases: problems and challenges |
ESWS
2008
Springer
13 years 10 months ago
2008
Springer
Integrated access to multiple distributed and autonomous RDF data sources is a key challenge for many semantic web applications. As a reaction to this challenge, SPARQL, the W3C Re...
ESCIENCE
2007
IEEE
14 years 24 days ago
2007
IEEE
Provenance management has become increasingly important to support scientific discovery reproducibility, result interpretation, and problem diagnosis in scientific workflow enviro...
ICDE
2006
IEEE
14 years 10 months ago
2006
IEEE
Adaptivity is a challenging open issue in data stream management. In this paper, we tackle the problem of memory adaptivity inside a system executing temporal sliding window queri...
DMSN
2009
ACM
14 years 3 months ago
2009
ACM
Generating a good execution plan for a declarative query has long been a central problem in data management research. With the rise in interest in wireless sensor networks (WSNs) ...
AIRS
2006
Springer
14 years 20 days ago
2006
Springer
One of the main challenges in content-based image retrieval still remains to bridge the gap between low-level features and semantic information. In this paper, we present our first...