Assessing self organizing maps via contiguity analysis

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Assessing self organizing maps via contiguity analysis
- Contiguity Analysis is a straightforward generalization of Linear Discriminant Analysis in which the partition of elements is replaced by a more general graph structure. Applied to the graph induced by a Self Organising Map (SOM), Contiguity Analysis provides a set of linear projectors leading to a representation as close as possible to the SOM map. As expected, such projectors may only concern local parts of the SOM maps. They allow us to visualize the shapes of the clusters and the pattern of the elements within each clusters. In some contexts, they provide confidence areas for elements via a standard partial bootstrap procedure. Key words
Ludovic Lebart
Added 14 Dec 2010
Updated 14 Dec 2010
Type Journal
Year 2006
Where NN
Authors Ludovic Lebart
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