Hi Arnaud,
I have already synced my master branch with the upstream repository and
checked what the discrepancies were. There were some differences between
implementations.(I have reused much of the code of forests so it was not
that different) I couldn't implement cython sections of this because I was
not experienced in that. I'm working on that too.
I started working on this enhancement (as it is marked as easy) and I've a
passable experience in dealing with code of forest.
https://github.com/scikit-learn/scikit-learn/issues/2129
I'll start working on other easy issues and start committing as soon as
possible.
Regards,
Maheshakya
On Fri, Jan 24, 2014 at 3:17 PM, Arnaud Joly <[email protected]> wrote:
>
> On 23 Jan 2014, at 07:18, Maheshakya Wijewardena <[email protected]>
> wrote:
>
> Arnaud,
> I've gone through those messages and I've already started working on
> patches. Last year I've done a project of a module in our university. It
> was to implement Bagging in Scikit-learn. As Gilles had already begun that,
> I was not able to get my code merged. Moreover I have not implemented
> feature bootstrapping as it was beyond the scope of my original proposal to
> the project.
>
> https://github.com/maheshakya/scikit-learn/blob/bagging2/sklearn/ensemble/bagging.py
>
> I would appreciate if you can review and give some feedback on my
> implementation and what can I do further.
>
>
> Sorry, but I am currently short of time. If you sync your master branch
> with the upstream repository,
> you can use github to show the differences between the current
> implementation and
> your implementation.
>
> http://stackoverflow.com/questions/3792989/how-to-view-diff-of-a-forked-github-project
>
> http://stackoverflow.com/questions/14500240/how-can-i-generate-a-diff-for-a-single-file-between-two-branches-in-github
>
>
> (here by you, I refer to Maheshakya Wijewardena, but also to any
> prospective google summer
> applicants)
>
> Everybody will appreciate if you take care of some issues in the tracker.
> You’ll be able to know more about scikit-learn: its goal, its vision, its
> development practices, its contributors, ...
> Start with small pull requests such as documentation fixes, small bugs or
> easy tagged issues.
> Then progressively move on bigger projects.
>
> This is an opportunity for you to know more about what you sign with a
> google summer of code.
> It will allow you to think about the subject of your
> proposal. Are you sure that you want to work full time on this subject for
> several months?
> If your proposal involve several specific modules, it’s a good idea to
> become
> more familiar with this part of the code (algorithms, software designs,
> problems, bugs, drawbacks,
> possible improvements, related scientific literature, …) and start
> contributing.
>
> Last but not least. Committing early in the project is important, because
> we are able to better
> know you in the process.
>
> Best,
> Arnaud
>
>
>
> Thank you.
>
>
> On Wed, Jan 22, 2014 at 2:51 PM, Caleb <[email protected]> wrote:
>
>> Hi all,
>>
>> I am using random forest to do deep learning/feature learning using the
>> RandomForestEmbedding in scikit-learn. It would be cool to apply
>> the random forest on the learned features and induced a higher level
>> representation.
>>
>> I have actually tried the naive approach of densified the output from
>> RandomForestEmbedding and feed it back to another one to get the second
>> level of representation of the same data, and then apply SVM on it. Not
>> only it is extremely slow, the result become worst.
>>
>> However, I think sparse matrix support for decision tree is a worthwhile
>> effort as it enables me to investigate why the result is worst easily.
>>
>> Just my 2 cents.
>>
>> Caleb
>>
>>
>> On Wednesday, January 22, 2014 1:15 PM, Maheshakya Wijewardena <
>> [email protected]> wrote:
>> Hi,
>>
>> I have been using Scikit-learn One hot encoder for data encoding and the
>> resulting array supports only for a few models such as logistic regression,
>> SVC, etc. When I convert those sparse matrices with list comprehension or
>> toarray() function to dense matrices, resulting arrays become too large for
>> those classifiers such as Decision trees or any other tree based
>> classifier.
>> I saw a GSOC project idea of implementing this as mentioned here.
>>
>> https://github.com/scikit-learn/scikit-learn/wiki/Google-summer-of-code-(GSOC)-2014
>> I'm looking forward to apply for GSOC this year as well, so I would like
>> start working on this. From where can I get support for this. (There're no
>> possible mentors assigned for this)
>>
>> Regards,
>> Maheshakya
>>
>>
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--
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Department of Computer Science and Engineering,
Faculty of Engineering.
University of Moratuwa,
Sri Lanka
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