SOM of SOMs: Self-organizing Map Which Maps a Group of Self-organizing Maps

This paper aims to propose an extension of SOMs called an “SOM of SOMs,” or SOM¾ , in which the mapped objects are self-organizing maps themselves. In SOM¾ , each nodal unit of the conventional SOM is replaced by a function module of SOM. Therefore, SOM¾ can be regarded as a variation of a modular network SOM (mnSOM). Since each child SOM module in SOM¾ is trained to represent a manifold, the parent SOM in SOM¾ generates a self-organizing map representing the distribution of the group of manifolds modeled by the child SOMs. This extension of SOM is easily generalized in the case of SOMÒ, such that “SOM¿ as SOM of SOM¾ s.” In this paper, the algorithm of SOM¾ is introduced, and some simulation results are reported.

• Type: Conference
• Year: 2005
• Where: ICANN
• Authors: Tetsuo Furukawa
• Keywords: Child Soms, ICANN 2005, Modular Network Som, Self-Organizing Map