• SGE-SMFA: This library contains Matlab code that performs dimensionality reduction and classification using the Subclass Graph Embedding methodology presented in journal paper "Maronidis, A., Tefas, A., & Pitas, I. (2015). Subclass graph embedding and a marginal fisher analysis paradigm. Pattern Recognition, 48(12), 4024-4035." It also contains code that performs multi-scale Spectral Clustering based on paper "Azran, A., & Ghahramani, Z. (2006, June). Spectral methods for automatic multiscale data clustering. In 2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'06) (Vol. 1, pp. 190-197). IEEE.". In case that the end user needs to run SVM classifier, osu-svm toolbox that is publicly available under "BSD licence" is mandatory.