boosting.h

强化学习算法（R-Learning）难得的珍贵资料

// Copyright (C) 2003 Ronan Collobert ([e-mail])
//                
// This file is part of Torch 3.
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#ifndef BOOSTING_INC
#define BOOSTING_INC

#include "Trainer.h"
#include "WeightedSumMachine.h"
#include "ClassFormat.h"

namespace Torch {

/** Boosting implementation.
    As the idea of boosting in regression hasn't been really well tested,
    this is boosting for *classification* only.
    
    This trainer will "boost" the machine given by the #WeightedSumMachine#,
    on the given #DataSet#.

    You have to provide a #ClassFormat# to know how the classes are encoded.

    @author Ronan Collobert ([e-mail])
    @see WeightedSumMachine
*/
class Boosting : public Trainer
{
  public:

    /// This machine performs the combination. It contains many trainers.
    WeightedSumMachine *w_machine;

    /// #ClassFormat# to know how the classes are encoded.
    ClassFormat *class_format;

    /// The number of trainers in the boosting.
    int n_trainers;

    /// The weights of each machine in the boosting.
    real *weights;

    ///
    Boosting(WeightedSumMachine *w_machine_, ClassFormat *class_format_);

    //-----
    
    virtual void train(DataSet *data, MeasurerList *measurers);

    virtual ~Boosting();
};


}

#endif