// Copyright (C) 2014 Guibing Guo
//
// This file is part of LibRec.
//
// LibRec is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// LibRec 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with LibRec. If not, see <http://www.gnu.org/licenses/>.
//
package librec.undefined;
import librec.data.SparseMatrix;
import librec.intf.IterativeRecommender;
/**
* Maximum Margin Matrix Factorization
*
* <p>
* This method aims to optimzie the NDCG measure. Original implementation in
* Matlab: <a
* href="http://ttic.uchicago.edu/~nati/mmmf/code.html">http://ttic.uchicago
* .edu/~nati/mmmf/code.html</a>
* </p>
*
* <p>
* Related Work:
* <ul>
* <li>Srebro et al., Maximum-margin Matrix Factorization, NIPS 2005.</li>
* <li>Rennie and Srebro, Fast Maximum Margin Matrix Factorization for
* Collaborative Prediction, ICML 2005.</li>
* <li>Rennie and Srebro, Loss Functions for Preference Levels: Regression with
* Discrete Ordered Labels, 2005.</li>
* <li>Weimer et al., Improving Maximum Margin Matrix Factorization, Machine
* Learning, 2008.</li>
* <li>Weimer et al., CoFI^{RANK} - Maximum Margin Matrix Factorization for
* Collaborative Ranking, NIPS 2008.</li>
* </ul>
* </p>
*
* @author guoguibing
*
*/
public class MMMF extends IterativeRecommender {
public MMMF(SparseMatrix trainMatrix, SparseMatrix testMatrix, int fold) {
super(trainMatrix, testMatrix, fold);
isRankingPred = true;
}
}