Re: [Databionic-ESOM-User] Parameter Selection & ...More

[Mario N. <noe...@Ma...>]

Hi Michael,

only a short answer, because I am in a hurry.

yes, there is a random component, the grid initialisation. Try the pca
initialisation to get maybe more similar maps.

mario

Michael Dell Junior wrote:

> Dear Mario  & Fabian,
>  
>  
> Thank you very much for your valuable comments and prompt response. I
> will implement your recommendations on an immediate basis.
>  
>  
> I have one other request pertaining to the training using the
> Databionics ESOM tool. What are the actions one needs to take if with
> two *identical runs* (in terms of parameter selection, and training
> set) obtains a different end result in terms of the
> proximity/clustering of different instances to one another? (I am
> aware that the Visual Part might be different on each run but my
> expectation would be that that the underlying structural sorting of
> the instances should be the same. e.g. In Run 1, Instance "234" is
> surrounded by instances "456", "789" & "123". Shouldn't the same "234"
> instance be surrounded by the same "456", "789" & "123" instances in
> Run 2? )
>  
>  Is this a sign of non-convergence? Is this a sign of some other
> underlying process that I am not aware of? Is there a random component
> that I am not aware of?
>  
> Your comments and suggestion on this issue will be very much appreciated.
>  
>  
> Regards,
> Michael
>  
>  
>
>
> ------------------------------------------------------------------------
> Post your free ad now! *Yahoo! Canada Personals*
> <http://ca.personals.yahoo.com/>