1430 search results - page 80 / 286 » Query operations for moving objects database systems |
MOBIDE
1999
ACM
14 years 1 months ago
1999
ACM
In this article we introduce a new conception of three-dimensional DataSpace, which is physical space enhanced by connectivity to the network. DataSpace is addressed geographicall...
VLDB
1994
ACM
14 years 1 months ago
1994
ACM
Global clustering has rarely been investigated in the area of spatial database systems although dramatic performance improvements can be achieved by using suitable techniques. In ...
ECIR
1998
Springer
13 years 10 months ago
1998
Springer
Modern extensible database systems support multimedia data through ADTs. However, because of the problems with multimedia query formulation, this support is not sufficient. Multim...
FQAS
2006
Springer
14 years 18 days ago
2006
Springer
We present a functional model for the analysis of large volumes of detailed transactional data, accumulated over time. In our model, the data schema is an acyclic graph with a sing...
EDBT
2002
ACM
14 years 9 months ago
2002
ACM
For a spatial database management system, it is an important goal to minimize the I/O-cost of queries and other operations. Several page-replacement strategies have been proposed a...