[pymvpa] New Elastic Net classifier

Yaroslav Halchenko debian at onerussian.com
Wed Feb 4 17:46:32 UTC 2009


sorry to be annoying, but we also have way to provide references in our
manual, hyperlinked from the docstrings as well... I've pushed that
change for Per's enet in
41217cab8551f19ab7438b65e95605dbd5a2f748

On Wed, 04 Feb 2009, Yaroslav Halchenko wrote:

> BTW -- I would like to encourage people insert such useful references
> directly into our bib/pymvpa.bib in the repository.

> I've done that for the
> http://www.ncbi.nlm.nih.gov/pubmed/18793733
> paper

> will add original papers as well in a sec

> On Tue, 03 Feb 2009, Per B. Sederberg wrote:

> > Hi Folks:

> > I just wanted to let you know that I just added in a new
> > regression-based classifier to PyMVPA that I think is going to be very
> > effective: the elastic net (ENET).  It's a variant on least angle
> > regression (LARS), but it has both L1 and L2 priors so that it
> > sparsifies the features AND keeps redundant features, which helps with
> > both generalizability and with sensitivity analysis.

> > As with LARS, I simply wrapped the R code written by the authors of
> > this manuscript:

> >     Zou and Hastie (2005) 'Regularization and Variable Selection via
> >     the Elastic Net' Journal of the Royal Statistical Society, Series
> >     B, 67, 301-320.
-- 
Yaroslav Halchenko
Research Assistant, Psychology Department, Rutgers-Newark
Student  Ph.D. @ CS Dept. NJIT
Office: (973) 353-1412 | FWD: 82823 | Fax: (973) 353-1171
        101 Warren Str, Smith Hall, Rm 4-105, Newark NJ 07102
WWW:     http://www.linkedin.com/in/yarik        



More information about the Pkg-ExpPsy-PyMVPA mailing list