GradientCriterion.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 Jacob Walker
 */

#ifndef CGRADIENTCRITERION_H_
#define CGRADIENTCRITERION_H_

#include <shogun/evaluation/Evaluation.h>

namespace shogun
{

class CGradientCriterion : public CEvaluation
{
public:
    CGradientCriterion() : CEvaluation() { m_direction=ED_MINIMIZE; }

    virtual ~CGradientCriterion() { }

    virtual float64_t evaluate(CLabels* predicted, CLabels* ground_truth)
    {
        return 0.0;
    }

    virtual EEvaluationDirection get_evaluation_direction() const
    {
        return m_direction;
    }

    virtual void set_evaluation_direction(EEvaluationDirection direction)
    {
        m_direction=direction;
    }

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

private:
    EEvaluationDirection m_direction;
};
}
#endif /* CGRADIENTCRITERION_H_ */