> Well, it's a tradeoff: a good reimplementation that would approach the
> original in terms of performance is a lot of work. For it to be
> sustainable, the team would have to grow a fair amount.

It is a lot of work but the bindings have caused us lots of problems
so far (memory leaks, sign switched etc). I would also like to point
out that the wrapper for the cross-validation in libsvm probably
doesn't work.

In the long term, we should aim for a Cython port of libsvm and
liblinear. Being able to work directly on the native ndarray is
invaluable and with the forthcoming fused types in Cython, we would be
able to use arbitrary dtype. David mentioned that it would make a good
GSOC. A good programmer should be able to translate the code fairly
easily, even without much SVM knowledge.

liblinear and libsvm have been patched in scikit-learn and I believe
it would be hard to keep the libraries up-to-date.

Mathieu

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