565 search results - page 4 / 113 » Multiple Range Query Optimization in Spatial Databases |
PODS
1993
ACM
15 years 1 months ago
1993
ACM
In this paper, we motivate four di erent user de ned window query classes and derive a probabilistic model for each of them. For each model, we characterize the e ciency of spatia...
171
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ICDE
2000
IEEE
15 years 11 months ago
2000
IEEE
Analysis of range queries on spatial (multidimensional) data is both important and challenging. Most previous analysis attempts have made certain simplifying assumptions about the...
168
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GIS
2005
ACM
15 years 10 months ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
DASFAA
2004
IEEE
15 years 1 months ago
2004
IEEE
Abstract. The efficient management of interval sequences represents a core requirement for many temporal and spatial database applications. With the Relational Interval Tree (RI-tr...
GIS
2007
ACM
15 years 1 months ago
2007
ACM
Spatial join is an important yet costly operation in spatial databases. In order to speed up the execution of a spatial join, the input tables are often indexed based on their spa...