Arindam Banerjee Srujana Merugu Inderjit S. Dhillon Joydeep Ghosh Clustering with Bregman Divergences. 1705-1749 2005 6 Journal of Machine Learning Research http://www.jmlr.org/papers/v6/banerjee05b.html db/journals/jmlr/jmlr6.html#BanerjeeMDG05