This site hosts Matlab code for the JCB paper:

Nonparametric Combinatorial Sequence Models.
F. L. Wauthier and M. I. Jordan and N. Jojic.
Journal of Computational Biology, 2011.

Matlab software: [zip file] [gzip'ed tarball].
Authors: Fabian Wauthier   flw (at) cs.berkeley.edu
                Nebojsa Jojic        jojic (at) microsoft.com (Corresponding author)