Yangmuzi Zhang, Zhuolin Jiang, Larry S. Davis. "Learning Structured Low-rank Representations for Image Classification". IEEE Conference on Computer Vision and Pattern Recognition, 2013.
http://www.umiacs.umd.edu/~zhuolin/Publications.html
http://www.umiacs.umd.edu/~zhuolin/Publications/CVPR2013_LowRank.pdf