2013/3/5 Robert McGibbon <rmcgi...@gmail.com>:
> The fastcluster project by Dan Mullner, a professor of math and statistics
> at Stanford, might be of interest.
>
> http://math.stanford.edu/~muellner/fastcluster.html
>
> These routines follow the same API of the hierarchical clustering routines
> in scipy, including single linkage and complete linkage, but are much much
> faster than the scipy routines. The code is BSD licensed.

This code is in C++ and the scikit-learn core maintainers are not all
experts in C++ and prefer cython for optimized code.

A cython rewrite of some of those algorithms would be of interest though.

-- 
Olivier
http://twitter.com/ogrisel - http://github.com/ogrisel

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