This git corresponds to the CRF Code used during my phd thesis. It uses the grmm toolbox:

Sutton, Charles. "GRMM: GRaphical Models in Mallet." http://mallet.cs.umass.edu/grmm/. 2006.

I modified the interface and add new feature templates to use continuous features and must-not links constraints.

The directory example contains toy examples showing how to use the different features