Topology Preserving Non-negative Matrix Factorization for Face Recognition.

Taiping Zhang Bin Fang Yuan Yan Tang Guanghui He Jing Wen Topology Preserving Non-negative Matrix Factorization for Face Recognition. 574-584 2008 17 IEEE Transactions on Image Processing 4 http://dx.doi.org/10.1109/TIP.2008.918957 db/journals/tip/tip17.html#ZhangFTHW08