3456 search results - page 575 / 692 » Semantics in Spatial Databases |
WWW
2010
ACM
14 years 3 months ago
2010
ACM
In this paper, we address the problem of database selection for XML document collections, that is, given a set of collections and a user query, how to rank the collections based o...
DASFAA
2009
IEEE
14 years 3 months ago
2009
IEEE
Prior research has shown that supplying decision-makers with data quality (DQ) tags, metadata about the quality of data used in decision-making, can impact decision outcomes in cer...
EDBT
2009
ACM
14 years 3 months ago
2009
ACM
We consider the following scenario for a mapping system: given a source schema, a target schema, and a set of value correspondences between these two schemas, generate an executab...
EDBT
2009
ACM
14 years 3 months ago
2009
ACM
This work addresses the problem of processing continuous nearest neighbor (NN ) queries for moving objects trajectories when the exact position of a given object at a particular t...
ADBIS
2009
Springer
14 years 2 months ago
2009
Springer
The development of location-based services and advances in the field of mobile computing have motivated an intensive research effort devoted to the efficient processing of locati...