[mlpack-git] [mlpack] hmm_train number of gaussians (#479)

Ryan Curtin notifications at github.com
Fri Nov 20 13:26:51 EST 2015


Hi Davud,

Consider running with '-v' (--verbose) for more output.  I think that one issue might be that you don't have labeled points from every state.  If that was the problem, it should be fixed in 2eface7.  Another possible issue would have been that invalid labels were specified; if so, it should be fixed in fa89192.

If neither of those fix your issue, if you can get me a copy of `observationPKM.csv` and `labels.csv`, I can reproduce it and dig deeper.

There is no restriction on the number of Gaussians, but note that as you add more and more Gaussians to the GMM, if you don't have many samples, you may have stability issues with the empirical covariance matrices (the debug messages that mention that the covariance matrix is not positive definite could be an indicator of this).

---
Reply to this email directly or view it on GitHub:
https://github.com/mlpack/mlpack/issues/479#issuecomment-158482692
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.cc.gatech.edu/pipermail/mlpack-git/attachments/20151120/bab6b1a7/attachment-0001.html>


More information about the mlpack-git mailing list