Network based stratification of tumor mutations described in the below paper. Implements the core GNMF using sparse matrices for efficient computation and stable heirarchial clustering.
Reference : http://www.nature.com/nmeth/journal/v10/n11/full/nmeth.2651.html
GNMF : http://www.cad.zju.edu.cn/home/dengcai/Publication/Journal/TPAMI-GNMF.pdf
similar repo: https://github.com/GHFC/stratipy