Added option to save the corpus as a sparse csc matrix
Merge pull request #63 from elenagr/master

Added option to save the corpus as a sparse csc matrix
Corrections to nb_kfolds.py
Merge pull request #64 from emsiepopples/master

Corrections to nb_kfolds.py
Merge remote-tracking branch 'upstream/master'
Bug fix: discard word overlap between topics to avoid probabilities larger than one