Re: [Scikit-learn-general] Bootstrap aggregating

2013-06-21 Thread Maheshakya Wijewardena
Ok, I got it.
I'll look at the code and see what can be done.

Thank you.


On Fri, Jun 21, 2013 at 7:17 PM, Andreas Mueller
wrote:

> On 06/21/2013 03:37 PM, Maheshakya Wijewardena wrote:
> > Thank you. I'll have look at the forest implementation and check what
> > can be done and inform you.
> > I'd like to have a look at Gilles s code. If it's convenient, can you
> > tell how you tried to implement that?
> I think it was mostly removing tree-specific code from the forest module.
>
>
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Re: [Scikit-learn-general] Bootstrap aggregating

2013-06-21 Thread Andreas Mueller
On 06/21/2013 03:37 PM, Maheshakya Wijewardena wrote:
> Thank you. I'll have look at the forest implementation and check what 
> can be done and inform you.
> I'd like to have a look at Gilles s code. If it's convenient, can you 
> tell how you tried to implement that?
I think it was mostly removing tree-specific code from the forest module.

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Re: [Scikit-learn-general] Bootstrap aggregating

2013-06-21 Thread Maheshakya Wijewardena
Thank you. I'll have look at the forest implementation and check what can
be done and inform you.
I'd like to have a look at Gilles s code. If it's convenient, can you tell
how you tried to implement that?

best

Maheshakya


On Fri, Jun 21, 2013 at 6:55 PM, Andreas Mueller
wrote:

> On 06/21/2013 12:56 PM, Maheshakya Wijewardena wrote:
> > So that means that bagging can only be applied to trees. How about
> > implementing a general module so that it can be applied on more
> > learning algorithms.
> >
> I think that would be great.
> You should look at the forest implementation to get started. You can
> probably reuse some code.
> I think Gilles started that long ago but didn't have the time to finish.
>
> Cheers,
> Andy
>
>
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Re: [Scikit-learn-general] Bootstrap aggregating

2013-06-21 Thread Andreas Mueller
On 06/21/2013 12:56 PM, Maheshakya Wijewardena wrote:
> So that means that bagging can only be applied to trees. How about 
> implementing a general module so that it can be applied on more 
> learning algorithms.
>
I think that would be great.
You should look at the forest implementation to get started. You can 
probably reuse some code.
I think Gilles started that long ago but didn't have the time to finish.

Cheers,
Andy

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Re: [Scikit-learn-general] Bootstrap aggregating

2013-06-21 Thread Maheshakya Wijewardena
So that means that bagging can only be applied to trees. How about
implementing a general module so that it can be applied on more learning
algorithms.


On Fri, Jun 21, 2013 at 4:17 PM, Olivier Grisel wrote:

> 2013/6/21 Gilles Louppe :
> > Hi,
> >
> > Such ensembles are not implemented at the moment.
>
> Ensembles of trees have a `bootstrap` parameter that do bagging,
> although they also randomize the feature selection and optionally
> split locations.
>
> --
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Re: [Scikit-learn-general] Bootstrap aggregating

2013-06-21 Thread Olivier Grisel
2013/6/21 Gilles Louppe :
> Hi,
>
> Such ensembles are not implemented at the moment.

Ensembles of trees have a `bootstrap` parameter that do bagging,
although they also randomize the feature selection and optionally
split locations.

--
Olivier

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Re: [Scikit-learn-general] Bootstrap aggregating

2013-06-21 Thread Maheshakya Wijewardena
I'm doing a brownfield development for a university project and I'm so
interested in this field. If I start implementing that kind ensemble
method, will it suit in the scope of this scikit-learn project. Will it be
useful for the users?( I've felt the need of that personally. It has
improved the results when used with other learning algorithms for certain
cases)
What help can I get from the community?


On Fri, Jun 21, 2013 at 1:38 PM, Gilles Louppe  wrote:

> Hi,
>
> Such ensembles are not implemented at the moment.
>
> Gilles
>
> On 21 June 2013 09:59, Maheshakya Wijewardena 
> wrote:
> > Hi all,
> > I would like to know whether we have  bootstrap aggregating
> functionality in
> > scikit-learn library. If so, How do I use that?
> > (If it doesn't exist I would like to implement that explicitly to cohere
> > with the learning algorithms we have in scikit-learn)
> >
> > Thank you
> >
> >
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Re: [Scikit-learn-general] Bootstrap aggregating

2013-06-21 Thread Gilles Louppe
Hi,

Such ensembles are not implemented at the moment.

Gilles

On 21 June 2013 09:59, Maheshakya Wijewardena  wrote:
> Hi all,
> I would like to know whether we have  bootstrap aggregating functionality in
> scikit-learn library. If so, How do I use that?
> (If it doesn't exist I would like to implement that explicitly to cohere
> with the learning algorithms we have in scikit-learn)
>
> Thank you
>
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[Scikit-learn-general] Bootstrap aggregating

2013-06-21 Thread Maheshakya Wijewardena
Hi all,
I would like to know whether we have  bootstrap aggregating functionality
in scikit-learn library. If so, How do I use that?
(If it doesn't exist I would like to implement that explicitly to cohere
with the learning algorithms we have in scikit-learn)

Thank you
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