% Pre-image problem for RBF kernel.%% rbfpreimg   - Schoelkopf's fixed-point algorithm.% rbfpreimg2  - Gradient optimization.% rbfpreimg3  - Kwok-Tsang's algorithm.%% About: Statistical Pattern Recognition Toolbox% (C) 1999-2004, Written by Vojtech Franc and Vaclav Hlavac% <a href="http://www.cvut.cz">Czech Technical University Prague</a>% <a href="http://www.feld.cvut.cz">Faculty of Electrical Engineering</a>% <a href="http://cmp.felk.cvut.cz">Center for Machine Perception</a>% Modifications:% 20-sep-2004, VF