3. Solution model
3.3 Landscape representation
To enable visualization, a topologically-organized map is not sufficient. The problem resides, since only order is conserved in the fact that the distances among elements are lost. Thus, a method to visualize the structure of the self-organizing map is followed. This can be done by giving an approximation of the weight vector distribution in the self-organizing map. Two methods can be used to complete this task: the unified matrix and the s-diagram [Siemon and Ultsch, 1992]. Since the latter gives a poor approximation of the weight vector distribution, only the first one will be examined.
- 3.3.1 - Unified matrix method
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- 3.3.2 - Visualization
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Cyberspace geography visualization - 15 October 1995
Luc Girardin, The Graduate Institute of International Studies