750 search results - page 57 / 150 » Aggregates in Possibilistic Databases |
ADBIS
1999
Springer
14 years 2 months ago
1999
Springer
Abstract. Overlapping Linear Quadtrees is a structure suitable for storing consecutive raster images according to transaction time (a database of evolving images). This structure s...
SMC
2010
IEEE
13 years 8 months ago
2010
IEEE
—We outline SoftFacts, an ontology mediated top-k information retrieval system over relational databases. An ontology layer is used to define (in terms of a OWL-QL like Semantic...
MDM
2005
Springer
14 years 3 months ago
2005
Springer
In this paper we propose a query-driven approach for tuning the time/energy trade-off in sensor networks with mobile sensors. The tuning factors include re-positioning of mobile s...
CIKM
1994
Springer
14 years 2 months ago
1994
Springer
This paper argues that most queries in object-oriented databases require traversing from one object to another in the aggregation hierarchy. Thus, the connections between objects ...
DOLAP
2005
ACM
13 years 12 months ago
2005
ACM
We propose a new functional framework for modeling, querying and reasoning about OLAP databases. The framework represents data (data cubes and dimensional hierarchies) and queryin...