MPCA features: Supervised MPCA is employed in causal factor analysiusanalysis that facilitates object recognition<ref name="MPCA">M. A. O. Vasilescu, D. Terzopoulos (2003) [http://www.cs.toronto.edu/~maov/tensorfaces/cvpr03.pdf "Multilinear Subspace Analysis of Image Ensembles"], "Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR’03), Madison, WI, June, 2003"</ref> while a semi-supervised MPCA feature selection is employed in visualization tasks.<ref>H. Lu, H.-L. Eng, M. Thida, and K.N. Plataniotis, "[http://www.dsp.utoronto.ca/~haiping/Publication/CrowdMPCA_CIKM2010.pdf Visualization and Clustering of Crowd Video Content in MPCA Subspace]," in Proceedings of the 19th ACM Conference on Information and Knowledge Management (CIKM 2010), Toronto, ON, Canada, October, 2010.</ref>
