38 search results - page 1 / 8 » Spatio-Temporal Aggregation Using Sketches |
ICDE
2004
IEEE
14 years 5 months ago
2004
IEEE
Several spatio-temporal applications require the retrieval of summarized information about moving objects that lie in a query region during a query interval (e.g., the number of m...
MDM
2007
Springer
13 years 10 months ago
2007
Springer
This work tackles the problem of answer-aggregation for continuous spatio-temporal range queries in distributed settings. We assume a grid-like coverage of the spatial universe of...
WLP
2004
Springer
13 years 9 months ago
2004
Springer
Abstract. We present a framework for a declarative approach to spatiotemporal reasoning on geographical data, based on the constraint logical language STACLP, which offers deducti...
DAWAK
2009
Springer
13 years 9 months ago
2009
Springer
Abstract. In the last years, extending OLAP (On-Line Analytical Processing) systems with spatial and temporal features has attracted the attention of of the GIS (Geographic Informa...
ADBIS
1999
Springer
13 years 8 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...