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// Copyright (C) 2002 Ronan Collobert (collober@iro.umontreal.ca)
//
//
// This file is part of Torch. Release II.
// [The Ultimate Machine Learning Library]
//
// Torch 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 2 of the License, or
// (at your option) any later version.
//
// Torch 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 Torch; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#ifndef WEIGHTED_SUM_MACHINE_INC
#define WEIGHTED_SUM_MACHINE_INC
#include "Trainer.h"
namespace Torch {
/** Weighted-sum machine.
This class contains a series of #Trainers#, and its forward method
simply performs the average of the output of each trainer on the same input.
@author Ronan Collobert (collober@iro.umontreal.ca)
*/
class WeightedSumMachine : public Machine
{
public:
/// The trainers used in the combination.
Trainer **trainers;
/// The corresponding measurers.
List **trainers_measurers;
/// The number of trainers in the combination.
int n_trainers;
/** The number of trainers that have been already trained.
After the initialization, it's zero.
Note that the forward method depends on this value.
(only the first #n_trainers_trained# trainers are used)
*/
int n_trainers_trained;
/// The weights of the combination.
real *weights;
/// True if the weights aren't given by the user, false otherwise.
bool weights_is_allocated;
///
WeightedSumMachine(Trainer **trainer_, int n_trainers_, List **trainers_measurers, real *weights_=NULL);
//-----
virtual void forward(List *inputs);
virtual void reset();
virtual void loadFILE(FILE *file);
virtual void saveFILE(FILE *file);
virtual ~WeightedSumMachine();
};
}
#endif
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