204 search results - page 2 / 41 » Indexing for Data Models with Constraints and Classes |
VLDB
2007
ACM
14 years 5 months ago
2007
ACM
An optimization query asks for one or more data objects that maximize or minimize some function over the data set. We propose a general class of queries, model-based optimization ...
SDM
2008
SIAM
13 years 6 months ago
2008
SIAM
In many multiclass learning scenarios, the number of classes is relatively large (thousands,...), or the space and time efficiency of the learning system can be crucial. We invest...
ICDE
2001
IEEE
14 years 6 months ago
2001
IEEE
We propose an extension to current view-based mediator systems called model-based mediation, in which views are defined and executed at the level of conceptual models (CMs) rather...
ICIP
1999
IEEE
14 years 6 months ago
1999
IEEE
The quadtree data structure is widely used in digital image processing and computer graphics for modeling spatial segmentation of images and surfaces. A quadtree is a tree in whic...
MVA
1990
13 years 6 months ago
1990
This paper describes work done as part of the Oxford AGV (Autonomous Guided Vehicle) project [2] towards recognition of classes of objects to be encountered in a factory environme...