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Kohonen Map Question- Preference for Corners of the Map

skyblue's picture
Submitted by skyblue on Tue, 03/02/2010 - 09:37
in

Winning neurons tend to be the ones in the far end of every corner

Hello everyone,

I was wondering if any of you has encountered the same problem as me, and how you solved it.

I have programmed a Kohonen map in Java, and even though I am just testing it with 14 patterns on a 10x10 grid, there seems to be a preference for the corners of the map. This is to an extent that many of the patterns which are in the same cluster as each other end up on the same coordinate on the map!

Is this normal?
What could cause this?

Any help is appreciated!

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jeffheaton's picture
Submitted by jeffheaton on Sat, 03/06/2010 - 12:39.

But maybe adjust the neighborhood functions so that there are no corners. Maybe if it wrapped around?

Jeff

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