def set_dbm(self, dbm):
        self.dbm = dbm
Group headwords by prefix, returning a dictionary containing
dataset/ETHPy150Open lisa-lab/pylearn2/pylearn2/models/dbm/sampling_procedure.py/SamplingProcedure.set_dbm--crossover with--dataset/ETHPy150Open pettarin/penelope/penelope/dictionary.py/Dictionary.group