[scikit-learn] Machine learning for PU data

Roman Yurchak rth.yurchak at gmail.com
Fri Jun 30 09:39:47 EDT 2017

Hello Ruchika,

I don't think that scikit-learn currently has algorithms that can train 
with positive and unlabeled class labels only. However, you could try 
one of the following compatible wrappers,
   - https://github.com/scikit-learn/scikit-learn/pull/371

(haven't tried them myself).

Also, you could try one class SVM as suggested here 


On 30/06/17 16:06, Ruchika Nayyar wrote:
> Hi All,
> I am a scikit-learn user and have a question for the community, if
> anyone has applied any available machine learning algorithms in the
> scikit-learn package for data with positive and unlabeled class only? If
> so would you share some insight with me. I understand this could be a
> broader topic but I am new to analyzing PU data and hence can use some
> help.
> Thanks,
> Ruchika
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