Re: [Scikit-learn-general] Shrunken Centroid Classifier

2012-03-13 Thread Robert Layton
On 13 March 2012 18:16, Andreas Mueller wrote: > On 03/13/2012 07:49 AM, Olivier Grisel wrote: > > Le 12 mars 2012 17:49, Robert Layton a écrit : > >> I'll work off that template, and when I work out the details of the > >> shrinking parameters (specifically which one is more in use), I'll > bra

Re: [Scikit-learn-general] Shrunken Centroid Classifier

2012-03-13 Thread Andreas Mueller
On 03/13/2012 07:49 AM, Olivier Grisel wrote: > Le 12 mars 2012 17:49, Robert Layton a écrit : >> I'll work off that template, and when I work out the details of the >> shrinking parameters (specifically which one is more in use), I'll branch >> and submit a PR. > Great. I think the nearest centro

Re: [Scikit-learn-general] Shrunken Centroid Classifier

2012-03-13 Thread Mathieu Blondel
> Great. I think the nearest centroid is a very nice baseline classifier > for sanity check: fast to fit, fast to predict, zero hyper-paramete > and yet make reasonable assumption for many classification dataset (a > good example of high bias, low variance, the opposite of deep decision > trees or

Re: [Scikit-learn-general] Shrunken Centroid Classifier

2012-03-12 Thread Olivier Grisel
Le 12 mars 2012 17:49, Robert Layton a écrit : > > I'll work off that template, and when I work out the details of the > shrinking parameters (specifically which one is more in use), I'll branch > and submit a PR. Great. I think the nearest centroid is a very nice baseline classifier for sanity c

Re: [Scikit-learn-general] Shrunken Centroid Classifier

2012-03-12 Thread Robert Layton
On 13 March 2012 09:42, Olivier Grisel wrote: > Le 11 mars 2012 20:35, Robert Layton a écrit : > > Hi All, > > > > On reading some research, it appears that the shrunken centroid > classifier > > is one of the better methods for authorship analysis. > > Therefore, I'm going to implement it at se

Re: [Scikit-learn-general] Shrunken Centroid Classifier

2012-03-12 Thread Olivier Grisel
Le 11 mars 2012 20:35, Robert Layton a écrit : > Hi All, > > On reading some research, it appears that the shrunken centroid classifier > is one of the better methods for authorship analysis. > Therefore, I'm going to implement it at see if it really is, and I was > planning to add it to scikits.l

Re: [Scikit-learn-general] Shrunken Centroid Classifier

2012-03-12 Thread Robert Layton
On 12 March 2012 19:30, Andreas wrote: > ** > Hi Robert. > To me, this sounds somwhat like Linear Discriminant Analysis or rather > Quadratic Discriminant Analysis (without the shrinking part) to me. > > In these methods, a Gaussian is fitted to each class and classification > is done by finding

Re: [Scikit-learn-general] Shrunken Centroid Classifier

2012-03-12 Thread Andreas
Hi Robert. To me, this sounds somwhat like Linear Discriminant Analysis or rather Quadratic Discriminant Analysis (without the shrinking part) to me. In these methods, a Gaussian is fitted to each class and classification is done by finding the Gaussian that most likely created a data point. Thi