@techreport{5239, title = {Nonnegative Matrix Approximation: Algorithms and Applications}, author = {Sra, S. and Dhillon, I.}, organization = {Max-Planck-Gesellschaft}, institution = {Univ. of Texas, Austin}, school = {Biologische Kybernetik}, month = may, year = {2006}, doi = {}, month_numeric = {5} }