MultitaskROCEvaluation.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 MULTITASKROCEVALUATION_H_
#define MULTITASKROCEVALUATION_H_

#include <shogun/transfer/multitask/TaskRelation.h>
#include <shogun/evaluation/ROCEvaluation.h>

namespace shogun
{

class CMultitaskROCEvaluation: public CROCEvaluation
{
public:
    CMultitaskROCEvaluation() :
        CROCEvaluation(), m_task_relation(NULL), m_tasks_indices(NULL),
        m_num_tasks(0)
    {
    }

    CMultitaskROCEvaluation(CTaskRelation* task_relation) :
        CROCEvaluation(), m_task_relation(NULL), m_tasks_indices(NULL),
        m_num_tasks(0)
    {
        set_task_relation(task_relation);
    }

    virtual ~CMultitaskROCEvaluation()
    {
        for (int32_t i=0; i<m_num_tasks; i++)
            m_tasks_indices[i].~SGVector<index_t>();
        SG_FREE(m_tasks_indices);
    }

    void set_task_relation(CTaskRelation* task_relation)
    {
        SG_REF(task_relation);
        SG_UNREF(m_task_relation);
        m_task_relation = task_relation;
    }

    CTaskRelation* get_task_relation() const
    {
        SG_REF(m_task_relation);
        return m_task_relation;
    }
    
    virtual void set_indices(SGVector<index_t> indices);

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

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

    virtual EEvaluationDirection get_evaluation_direction()
    {
        return ED_MAXIMIZE;
    }

protected:

    CTaskRelation* m_task_relation;

    SGVector<index_t>* m_tasks_indices;

    int32_t m_num_tasks;
};

}

#endif /* MULTITASKROCEVALUATION_H_ */