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From Ted Dunning <>
Subject Re: Classification Algorithms in Mahout
Date Sun, 24 Mar 2013 08:00:42 GMT
You are correct to suspect that this page is substantially out of date.

Currently, Mahout has the following classifiers:

- stochastic gradient descent for logistic regression (SGD) with L_1 or L_2 regularization,
sequential version only.  These classifiers can be easily extended with other gradients and
regularizers which should make linear SVM's easy to implement.

- naive bayes, sequential and parallel implementations

- random forest, sequential and parallel implementations, new versions are being developed,
the current version may or may not be useful to you.

There are a variety of other classifiers which are in various states of utility.
On Mar 24, 2013, at 4:07 AM, Chidananda Sridhar wrote:

> Hi,
> I am doing a class project on classification and want to use Mahout. I was
> searching for the classification algorithms already implemented in Mahout
> and came to this page:
> The webpage says that Online Passive
> Aggressive<>is
> integrated and the rest of the classification algorithms are open or
> awaiting commit. Does the webpage have the latest information, or is it yet
> to be updated? Is "Online Passive Aggressive" the only algorithm I can use
> for now? On the other hand, I see that most of the clustering algorithms
> have been integrated.
> Thanks,
> Chidananda

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