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136
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SAC
2010
ACM
15 years 10 months ago
2010
ACM
In GIS and spatial databases, cardinal directions are frequently used as selection and join criteria in query languages. However, most cardinal direction models are only able to h...
146
Voted
SIGMOD
2010
ACM
15 years 8 months ago
2010
ACM
The K-Nearest Neighbor search (kNN) problem has been investigated extensively in the past due to its broad range of applications. In this paper we study this problem in the contex...
150
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GIS
2009
ACM
15 years 8 months ago
2009
ACM
This paper proposes a method for generating a Focus+Glue +Context map for Web map services by improving existing fisheye views methods for cartographic data. While many studies h...
185
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DEM
2001
Springer
15 years 8 months ago
2001
Springer
A common concern of the real−time terrain visualisation of today is the lack of geometric detail, when the terrain model is studied close enough. This is primary not a problem of...
131
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VLDB
1993
ACM
15 years 8 months ago
1993
ACM
ract One important aspect of scientific data management is metadata management. Metadata is information about data (e.g., content, source, processing applied, precision). One kind ...