EnsembleDecisionTree.hpp

/*
 * EnsembleDecisionTree.hpp
 * 
 * Copyright 2018 Fernando Pujaico Rivera <fernando.pujaico.rivera@gmail.com>
 * 
 * This program 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.
 * 
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 * 
 */
 
#ifndef __PDS_ENSEMBLEDECISIONTREE_HPP__
#define __PDS_ENSEMBLEDECISIONTREE_HPP__
 
 
#include <Pds/Vector>
#include <Pds/DecisionTree>
#include <Pds/IterationConf>
 
#include <sstream>      // std::ostringstream
 
namespace Pds{
 
class EnsembleDecisionTree
{
private:
    std::vector<Pds::DecisionTree> P;
    Pds::Perceptron Po;
 
public:
 
    EnsembleDecisionTree(void);
    
    EnsembleDecisionTree(const std::string &filename);  
 
 
    EnsembleDecisionTree(   Pds::IterationConf &Conf, 
                            const Pds::Matrix &X,
                            const Pds::Vector &Y, 
                            unsigned int M,
                            double Prob,
                            double StopBinaryIG=0.95,
                            unsigned int StopSamples=2,
                            unsigned int StopDeep=0);
    
 
    EnsembleDecisionTree(   const Pds::Matrix &X,
                            const Pds::Vector &Y, 
                            unsigned int M,
                            double Prob,
                            double StopBinaryIG=0.95,
                            unsigned int StopSamples=2,
                            unsigned int StopDeep=0);
 
    ~EnsembleDecisionTree();
 
 
public:
 
    double Predict(const Pds::Vector &x) const;
    
    double PredictWithoutStacking(const Pds::Vector &x) const;
 
    Pds::Vector Predict(const Pds::Matrix &X) const;
    
    Pds::Vector PredictWithoutStacking(const Pds::Matrix &X) const;
 
public:
 
    bool ExportFile(const std::string &filename) const;
    
    
    bool ImportFile(const std::string &filename);
    
public:
 
    unsigned int Nel(void) const;
    
    const Pds::Perceptron &GetStackingClassifier(void) const;
    
    bool SetStackingClassifier(const Pds::Vector &W);
    
    bool IsEmpty(void) const;
 
    bool IsNotEmpty(void) const;
 
 
    void MakeEmpty(void);
 
public:
 
    void Print(std::string str="") const;
}; // Class EnsembleDecisionTree
 
} // namespace Pds
 
 
#endif