Efficient Multidimensional Scaling (MDS)
17 Jun 2013
18 Jun 2013)
The is the source code of iterated Levenberg-Marquardt algorithm (ILMA) for solving MDS
% Copyright (C) 2013 Quan Wang <email@example.com>,
% Signal Analysis and Machine Perception Laboratory,
% Department of Electrical, Computer, and Systems Engineering,
% Rensselaer Polytechnic Institute, Troy, NY 12180, USA
% You are free to use this software for academic purposes if you cite our paper:
% Quan Wang and Kim L. Boyer.
% Feature Learning by Multidimensional Scaling and its Applications in Object Recognition.
% 2013 26th SIBGRAPI Conference on Graphics, Patterns and Images (Sibgrapi). IEEE, 2013.
% For commercial use, please contact the authors.
% The total raw stress.
% X: matrix of MDS codes
% Dist: distance matrix
% f: raw stress
f = f + sum(V.*V);