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IEICE TRANSACTIONS on Information

Factor Controlled Hierarchical SOM Visualization for Large Set of Data

Junan CHAKMA, Kyoji UMEMURA

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Summary :

Self-organizing map is a widely used tool in high-dimensional data visualization. However, despite its benefits of plotting very high-dimensional data on a low-dimensional grid, browsing and understanding the meaning of a trained map turn to be a difficult task -- specially when number of nodes or the size of data increases. Though there are some well-known techniques to visualize SOMs, they mainly deals with cluster boundaries and they fail to consider raw information available in original data in browsing SOMs. In this paper, we propose our Factor controlled Hierarchical SOM that enables us select number of data to train and label a particular map based on a pre-defined factor and provides consistent hierarchical SOM browsing.

Publication
IEICE TRANSACTIONS on Information Vol.E86-D No.9 pp.1796-1803
Publication Date
2003/09/01
Publicized
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Type of Manuscript
Special Section PAPER (Special Issue on Text Processing for Information Access)
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