3456 search results - page 163 / 692 » Semantics in Spatial Databases |
GIS
2007
ACM
14 years 9 months ago
2007
ACM
We propose a general framework to index very large datasets of spatial data in a distributed system. Our proposal is built on the recently proposed Scalable Distributed Rtree (SD-...
AIED
2007
Springer
14 years 2 months ago
2007
Springer
Building effective learning environments is an art that can only be perfected by a great deal of explorations involving the environments’ audience: the learners. This paper focus...
PRL
2007
13 years 7 months ago
2007
One of the most widely used approaches in the context of object recognition across illumination changes consists in comparing the images by means of the intersection between invar...
LREC
2010
13 years 9 months ago
2010
This paper describes a new language resource of events and semantic roles that characterize real-world situations. Narrative schemas contain sets of related events (edit and publi...
VLDB
1993
ACM
14 years 12 days ago
1993
ACM
Abstract. We show that production rules and persistent queues together provide a convenient mechanism for maintaining consistency in semantically heterogeneous multidatabase enviro...