111 search results - page 15 / 23 » gis 2009 |
KDD
2009
ACM
14 years 11 months ago
2009
ACM
Given a spatial data set placed on an n ? n grid, our goal is to find the rectangular regions within which subsets of the data set exhibit anomalous behavior. We develop algorithm...
COSIT
2009
Springer
14 years 5 months ago
2009
Springer
Conceptual neighborhood graphs are similarity-based schemata of spatial/temporal relations. This paper proposes a semi-automated method for deriving a conceptual neighborhood graph...
COSIT
2009
Springer
14 years 5 months ago
2009
Springer
Relation models have treated multi-holed regions relations either the same as hole-free regions relations, loosing this way the peculiarities of the holed topology, or with methods...
GIS
2009
ACM
14 years 12 months ago
2009
ACM
The spatio-textual spreadsheet is a conventional spreadsheet where spatial attribute values are specified textually. Techniques are presented to automatically find the textually-s...
SAC
2009
ACM
14 years 5 months ago
2009
ACM
We present a GPU-based algorithm for computing discretized distance functions on road networks. As applications, we provide algorithms for computing discrete Order-k Network Voron...