Hello Everyone,
I have updated my final proposal on melange.
http://www.google-melange.com/gsoc/proposal/public/google/gsoc2014/manojkumar/5662278724616192.
Hope I have addressed all issues.
On Fri, Mar 7, 2014 at 6:23 PM, Manoj Kumar
<manojkumarsivaraj...@gmail.com>wrote:
> Okay.
>
> Firstly, currently in my timeline, I have put the coordinate-descent based
> solver at the end of my timeline. Do you want me to move it just after we
> get LogisticRegression (and LogisticRegressionCV) merged, since then we
> would be able to see if multinomialLR can be done away with or not.
>
> Secondly, since LR and multinomial LR have different cost functions,
> wouldn't it be better to keep them separate? Just like how we have a
> separate MultiTaskElasticNet and an ElasticNet. At-least that's what Alex
> told me when I inquired about the need for a separate class when y.ndim > 1
>
> Sorry for my noobness. I'm still relatively new to the community.
>
>
>
>
> No, for multi-output you'd still want OvR, of course. What I'm saying
>
>> (asking) is that (whether) the CD-based LogisticRegressionCV can do
>> multinomial regression for the multiclass case (?), either by default
>> or as an extra. Then maybe we can get rid of the additional
>> multinomial L-BFGS estimator. I proposed it primarily because hacking
>> true multinomial LR into Liblinear is more work than writing a new
>> estimator.
>
>
--
Regards,
Manoj Kumar,
Mech Undergrad
http://manojbits.wordpress.com
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