Hierarchical word clustering, following "Brown clustering" (Brown et al., 1992).
See the docstrings in the scripts for further information.
I developed the code for Python 3.2.3, but it seems to work fine with Python 2.7 and pypy 2.0.
python pmi_cluster.py example_input.txt example_output.txt
And then (optionally) sort by the bitstrings for easier browsing...
sort -k 2 example_output.txt > example_output_sorted.txt
This software is released under the BSD 2-clause license (http://opensource.org/licenses/BSD-2-Clause). See LICENSE.txt.