[scikit-learn] Generalized Discriminant Analysis with Kernel

Raga Markely raga.markely at gmail.com
Tue Jan 10 10:16:16 EST 2017


Thank you very much for your info on Nystroem kernel approximator. I
appreciate it!

Best,
Raga

On Tue, Jan 10, 2017 at 7:47 AM, <scikit-learn-request at python.org> wrote:

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> Date: Tue, 10 Jan 2017 11:58:59 +0300
> From: avn at mccme.ru
> To: Scikit-learn user and developer mailing list
>         <scikit-learn at python.org>
> Subject: Re: [scikit-learn] Generalized Discriminant Analysis with
>         Kernel
> Message-ID: <c2c15b0829e5facab0821dc078d90db1 at mccme.ru>
> Content-Type: text/plain; charset=UTF-8; format=flowed
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> Hi Raga,
>
> You may try approximating your kernel using Nystroem kernel approximator
> (kernel_approximation.Nystroem) and then apply LDA to the transformed
> feature vectors. If you choose dimensionality of the target space
> (n_components) large enough (depending on your kernel and data),
> Nystroem approximator should provide sufficiently good kernel
> approximation for such combination to approximate GDA.
>
> Raga Markely ????? 2017-01-09 19:29:
> > Hello,
> >
> > I wonder if scikit-learn has implementation for generalized
> > discriminant analysis using kernel approach?
> > http://www.kernel-machines.org/papers/upload_21840_GDA.pdf
> >
> > I did some search, but couldn't find.
> >
> > Thank you,
> > Raga
> > _______________________________________________
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