Re: [Scikit-learn-general] Plotting training to evaluate the bias / variance regime

2011-12-27 Thread Nick Wilson
On Tue, Dec 27, 2011 at 6:23 PM, Olivier Grisel wrote: > Hi all, > > I came across the following blog post about Andrew Ng's ML class and I > like the training / validation errors plots to find out whether the > model is too biased (underfitting) or two lax (high variance, > over-fitting). > >  ht

Re: [Scikit-learn-general] Looking for application data to VDHMMs

2011-12-27 Thread xinfan meng
In that case, It can also be applied to Chinese word segmentation. On Wed, Dec 28, 2011 at 6:49 AM, Lars Buitinck wrote: > 2011/12/27 Nelle Varoquaux : > > VDHMMs are HMMs in which a state can emit a serie of observations. It > seems > > that the main application to these chains are speech recog

Re: [Scikit-learn-general] Looking for application data to VDHMMs

2011-12-27 Thread Lars Buitinck
2011/12/27 Nelle Varoquaux : > VDHMMs are HMMs in which a state can emit a serie of observations. It seems > that the main application to these chains are speech recognition, and > handwriting recognition: fields in which we are trying to determine a state > to poorly segmented data. Would anyone k

Re: [Scikit-learn-general] Looking for application data to VDHMMs

2011-12-27 Thread josef . pktd
On Tue, Dec 27, 2011 at 4:36 PM, Nelle Varoquaux wrote: > Hi all, > > Despite this not being directly related to scikit-learn, I hope to benefit > from the experience of machine learning developpers: > I'm currently studying an article on Variable Duration HMMs (VDHMMs), and I > am seeking advices

[Scikit-learn-general] Looking for application data to VDHMMs

2011-12-27 Thread Nelle Varoquaux
Hi all, Despite this not being directly related to scikit-learn, I hope to benefit from the experience of machine learning developpers: I'm currently studying an article on Variable Duration HMMs (VDHMMs), and I am seeking advices on application data. VDHMMs are HMMs in which a state can emit a s

[Scikit-learn-general] Plotting training to evaluate the bias / variance regime

2011-12-27 Thread Olivier Grisel
Hi all, I came across the following blog post about Andrew Ng's ML class and I like the training / validation errors plots to find out whether the model is too biased (underfitting) or two lax (high variance, over-fitting). http://digitheadslabnotebook.blogspot.com/2011/12/practical-advice-for

Re: [Scikit-learn-general] Ensemble meta-estimators

2011-12-27 Thread Gilles Louppe
Hi Andy, On 27 December 2011 13:37, Andreas Müller wrote: > Hi everybody! > I was wondering if anyone is working on ensemble meta-estimators. > There seems to have been some effort by @glouppe when doing the random > forests. > Is that still going on? I am not working on that currently. > Also,

[Scikit-learn-general] Ensemble meta-estimators

2011-12-27 Thread Andreas Müller
Hi everybody! I was wondering if anyone is working on ensemble meta-estimators. There seems to have been some effort by @glouppe when doing the random forests. Is that still going on? Also, I was wondering how tree-specific the random forest module is. I looked at the pull request but could not f

[Scikit-learn-general] Sparse scaler pull request ready for final review before merge

2011-12-27 Thread Olivier Grisel
Please comment here: https://github.com/scikit-learn/scikit-learn/pull/515 -- Olivier http://twitter.com/ogrisel - http://github.com/ogrisel -- Write once. Port to many. Get the SDK and tools to simplify cross-platform