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From YiZhi Liu <javeli...@gmail.com>
Subject Re: Ability to offer initial coefficients in ml.LogisticRegression
Date Fri, 23 Oct 2015 02:40:59 GMT
Thank you Tsai.

Holden, would you mind posting the JIRA issue id here? I searched but
found nothing. Thanks.

2015-10-23 1:36 GMT+08:00 DB Tsai <dbtsai@dbtsai.com>:
> There is a JIRA for this. I know Holden is interested in this.
>
>
> On Thursday, October 22, 2015, YiZhi Liu <javelinjs@gmail.com> wrote:
>>
>> Would someone mind giving some hint?
>>
>> 2015-10-20 15:34 GMT+08:00 YiZhi Liu <javelinjs@gmail.com>:
>> > Hi all,
>> >
>> > I noticed that in ml.classification.LogisticRegression, users are not
>> > allowed to set initial coefficients, while it is supported in
>> > mllib.classification.LogisticRegressionWithSGD.
>> >
>> > Sometimes we know specific coefficients are close to the final optima.
>> > e.g., we usually pick yesterday's output model as init coefficients
>> > since the data distribution between two days' training sample
>> > shouldn't change much.
>> >
>> > Is there any concern for not supporting this feature?
>> >
>> > --
>> > Yizhi Liu
>> > Senior Software Engineer / Data Mining
>> > www.mvad.com, Shanghai, China
>>
>>
>>
>> --
>> Yizhi Liu
>> Senior Software Engineer / Data Mining
>> www.mvad.com, Shanghai, China
>>
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>
>
> --
> - DB
>
> Sent from my iPhone



-- 
Yizhi Liu
Senior Software Engineer / Data Mining
www.mvad.com, Shanghai, China

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