110 search results - page 2 / 22 » ROSA: A Data Model and Query Language for e-Learning Objects |
ESWS
2010
Springer
13 years 4 months ago
2010
Springer
Abstract. RDF will often be the metadata model of choice in the Semantic Sensor Web. However, RDF can only represent thematic metadata and needs to be extended if we want to model ...
ICDT
2007
ACM
13 years 12 months ago
2007
ACM
Moving objects produce trajectories. We describe a data model for trajectories and trajectory samples and an efficient way of modeling uncertainty via beads for trajectory samples....
OTM
2005
Springer
13 years 11 months ago
2005
Springer
: The paper presents a solution of the problem of wrapping relational databases to an object-oriented business model in the data grid architecture. The main problem with this kind ...
SAC
2008
ACM
13 years 5 months ago
2008
ACM
We address aggregate queries over GIS data and moving object data, where non-spatial information is stored in a data warehouse. We propose a formal data model and query language t...
SIGMOD
1989
ACM
13 years 10 months ago
1989
ACM
ODE is a database system and environment based on the object paradigm. It offers one integrated data model for both database and general purpose manipulation. The database is defi...