242 search results - page 30 / 49 » An Efficient Method for Indexing Now-relative Bitemporal dat... |
DBA
2004
13 years 9 months ago
2004
In order to guarantee efficient query processing together with industrial strength, spatial index structures have to be integrated into fully-fledged object-relational database ma...
GIS
2004
ACM
14 years 8 months ago
2004
ACM
Spatial, temporal and spatio-temporal aggregates over continuous streams of remotely sensed image data build a fundamental operation in many applications in the environmental scie...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
The reverse k-nearest neighbor (RkNN) problem, i.e. finding all objects in a data set the k-nearest neighbors of which include a specified query object, is a generalization of the...
DASFAA
2006
IEEE
14 years 1 months ago
2006
IEEE
Keyword search is an effective approach for most users to search for information because they do not need to learn complex query languages or the underlying structures of the data....
KDD
2008
ACM
14 years 8 months ago
2008
ACM
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...