876 search results - page 22 / 176 » Evaluation of Clusterings - Metrics and Visual Support |
108
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ICDM
2003
IEEE
15 years 7 months ago
2003
IEEE
PixelMaps are a new pixel-oriented visual data mining technique for large spatial datasets. They combine kerneldensity-based clustering with pixel-oriented displays to emphasize c...
139
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GIS
2002
ACM
15 years 1 months ago
2002
ACM
Clustering is one of the most important tasks for geographic knowledge discovery. However, existing clustering methods have two severe drawbacks for this purpose. First, spatial c...
132
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VIS
2004
IEEE
16 years 3 months ago
2004
IEEE
We present a novel multiscale approach for flow visualization. We define a local alignment tensor that encodes a measure for alignment to the direction of a given flow field. This...
119
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MM
2006
ACM
15 years 7 months ago
2006
ACM
We have developed a biologically-motivated, unsupervised way of grouping together images whose salient regions of interest (ROIs) are perceptually similar regardless of the visual...
117
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INFOVIS
2005
IEEE
15 years 7 months ago
2005
IEEE
In order to gain insight into multivariate data, complex structures must be analysed and understood. Parallel coordinates is an excellent tool for visualizing this type of data bu...