MLPACK  1.0.7
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mult_dist_update_rules.hpp File Reference
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Classes

class  mlpack::nmf::HMultiplicativeDistanceRule
 The update rule for the encoding matrix H. More...
 
class  mlpack::nmf::WMultiplicativeDistanceRule
 The update rule for the basis matrix W. More...
 

Namespaces

 mlpack
 Linear algebra utility functions, generally performed on matrices or vectors.
 
 mlpack::nmf
 

Detailed Description

Author
Mohan Rajendran

Update rules for the Non-negative Matrix Factorization. This follows a method described in the paper 'Algorithms for Non-negative Matrix Factorization' by D. D. Lee and H. S. Seung. This is a multiplicative rule that ensures that the Frobenius norm $ \sqrt{\sum_i \sum_j(V-WH)^2} $ is non-increasing between subsequent iterations. Both of the update rules for W and H are defined in this file.

This file is part of MLPACK 1.0.7.

MLPACK is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

MLPACK is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details (LICENSE.txt).

You should have received a copy of the GNU General Public License along with MLPACK. If not, see http://www.gnu.org/licenses/.

Definition in file mult_dist_update_rules.hpp.