01-10-2006, 09:37 PM
If you feed it random vectors, a well-behaving SOM will distribute them evenly over its 'model space'.
If you feed it grid coordinates, it will do the same, with the additional comfort for the programmer of being able to display the connexions easily.
But whichever method you choose, you must always first normalize the input, i.e. bringing all coordinates in the range [-1, 1].
So, go either way.
vspickelen
If you feed it grid coordinates, it will do the same, with the additional comfort for the programmer of being able to display the connexions easily.
But whichever method you choose, you must always first normalize the input, i.e. bringing all coordinates in the range [-1, 1].
So, go either way.
vspickelen