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From YiZhi Liu <javeli...@gmail.com>
Subject Re: Ability to offer initial coefficients in ml.LogisticRegression
Date Mon, 02 Nov 2015 15:32:59 GMT
Hi Tsai,

Is it proper if I create a jira and try to work on it?

2015-10-23 10:40 GMT+08:00 YiZhi Liu <javelinjs@gmail.com>:
> 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
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: dev-unsubscribe@spark.apache.org
>>> For additional commands, e-mail: dev-help@spark.apache.org
>>>
>>
>>
>> --
>> - DB
>>
>> Sent from my iPhone
>
>
>
> --
> 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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