Rank: 2142 based on 60 downloads (last 30 days) and 1 file submitted
photo

Andrew

E-mail

Personal Profile:

 

Watch this Author's files

 

Files Posted by Andrew
Updated   File Tags Downloads
(last 30 days)
Comments Rating
16 May 2012 Screenshot EM algorithm for Gaussian mixture model with background noise Standard EM algorithm to fit a GMM with the (optional) consideration of background noise. Author: Andrew gmm, em, clustering, mixture 60 3
  • 5.0
5.0 | 1 rating
Comments and Ratings on Andrew 's Files View all
Updated File Comment by Comments Rating
08 Aug 2014 EM algorithm for Gaussian mixture model with background noise Standard EM algorithm to fit a GMM with the (optional) consideration of background noise. Author: Andrew David Provencher

I'm trying to run the code, but I keep getting this warning :

'Warning: chol failed, algorithm abandoned';

because the cholcov(Sigma(:,:,j),0); line always fails at the 2nd iteration (bn_noise='T') or 3rd iteration (bn_noise='F').

FYI, I have no NaN values in my data, and I get coherent results with kmeans() and emgm() [the submission that inspired this one]. Actually, no matter what data I feed into the function (e.g. squre matrix, rand(m,n), ...) this step always fails.

Any insight on this?
Thanks,
David

01 Oct 2012 EM algorithm for Gaussian mixture model with background noise Standard EM algorithm to fit a GMM with the (optional) consideration of background noise. Author: Andrew Jin Wang

the input has to be square,right?
if my input data is not square, like 200x10, what should I do?
Thanks!

16 May 2012 EM algorithm for Gaussian mixture model with background noise Standard EM algorithm to fit a GMM with the (optional) consideration of background noise. Author: Andrew peter

an "unknown" cluster, this is what we have been looking for. thanks a lot.

Contact us