This looks perfect. I’m pretty knew to ensemble methods, so please forgive this
ignorant question: what’s the difference between ExtraTrees and RandomForests?
From http://scikit-learn.org/stable/modules/ensemble.html it looks like
ExtraTrees is an extension of RandomForests. Examples of when one would use one
vs. the other would be greatly appreciated.
Thanks!
-Alessandro
Date: Sun, 9 Feb 2014 17:07:06 -0800
From: Olivier Grisel <[email protected]<mailto:[email protected]>>
2014-02-07 15:09 GMT-08:00 Peter Prettenhofer
<[email protected]<mailto:[email protected]>>:
Hi Allessandro,
you might want to look into this presentation by Olivier
https://speakerdeck.com/ogrisel/growing-randomized-trees-in-the-cloud-1 --
it should be pretty much what you need. Code is here
https://github.com/pydata/pyrallel.
In particular have a look at the class:
https://github.com/pydata/pyrallel/blob/master/pyrallel/ensemble.py#L131
There is a basic usage example here:
http://nbviewer.ipython.org/github/pydata/pyrallel/blob/master/examples/Distributed%20Randomized%20Tree%20Growing.ipynb
Sorry no releases, no doc and no tests (besides basic inline
doctests). This is an experimental project and the API might change at
point but you can use it as an example to your own IPython.parallel
based code if you wish.
If you want to dig further you might also want to have a look at this
video tutorial:
https://github.com/ogrisel/parallel_ml_tutorial
--
Olivier
http://twitter.com/ogrisel - http://github.com/ogrisel
------------------------------
------------------------------------------------------------------------------
Managing the Performance of Cloud-Based Applications
Take advantage of what the Cloud has to offer - Avoid Common Pitfalls.
Read the Whitepaper.
http://pubads.g.doubleclick.net/gampad/clk?id=121051231&iu=/4140/ostg.clktrk
------------------------------
_______________________________________________
Scikit-learn-general mailing list
[email protected]<mailto:[email protected]>
https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
End of Scikit-learn-general Digest, Vol 49, Issue 23
****************************************************
------------------------------------------------------------------------------
Android™ apps run on BlackBerry®10
Introducing the new BlackBerry 10.2.1 Runtime for Android apps.
Now with support for Jelly Bean, Bluetooth, Mapview and more.
Get your Android app in front of a whole new audience. Start now.
http://pubads.g.doubleclick.net/gampad/clk?id=124407151&iu=/4140/ostg.clktrk
_______________________________________________
Scikit-learn-general mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
