MulticlassOVREvaluation.h

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/*
 * 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 3 of the License, or
 * (at your option) any later version.
 *
 * Copyright (C) 2012 Sergey Lisitsyn
 */

#ifndef MULTICLASSOVREVALUATION_H_
#define MULTICLASSOVREVALUATION_H_

#include <shogun/lib/config.h>

#include <shogun/evaluation/Evaluation.h>
#include <shogun/evaluation/BinaryClassEvaluation.h>
#include <shogun/labels/Labels.h>

namespace shogun
{

class CLabels;

class CMulticlassOVREvaluation: public CEvaluation
{
public:
    CMulticlassOVREvaluation();

    CMulticlassOVREvaluation(CBinaryClassEvaluation* binary_evaluation);

    virtual ~CMulticlassOVREvaluation();

    void set_binary_evaluation(CBinaryClassEvaluation* binary_evaluation)
    {
        SG_REF(binary_evaluation);
        SG_UNREF(m_binary_evaluation);
        m_binary_evaluation = binary_evaluation;
    }

    CBinaryClassEvaluation* get_binary_evaluation()
    {
        SG_REF(m_binary_evaluation);
        return m_binary_evaluation;
    }

    virtual float64_t evaluate(CLabels* predicted, CLabels* ground_truth);

    SGVector<float64_t> get_last_results()
    {
        return m_last_results;
    }

    SGMatrix<float64_t> get_graph_for_class(int32_t class_idx)
    {
        ASSERT(m_graph_results)
        ASSERT(class_idx>=0)
        ASSERT(class_idx<m_num_graph_results)
        return m_graph_results[class_idx];
    }

    virtual EEvaluationDirection get_evaluation_direction() const
    {
        return m_binary_evaluation->get_evaluation_direction();
    }

    virtual const char* get_name() const { return "MulticlassOVREvaluation"; }

protected:

    CBinaryClassEvaluation* m_binary_evaluation;

    SGVector<float64_t> m_last_results;

    SGMatrix<float64_t>* m_graph_results;

    int32_t m_num_graph_results;

};

}

#endif /* MULTICLASSOVREVALUATION_H_ */