/usr/include/shogun/evaluation/Evaluation.h is in libshogun-dev 3.2.0-7.3build4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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.
*
* Written (W) 2011 Sergey Lisitsyn
* Copyright (C) 2011 Berlin Institute of Technology and Max-Planck-Society
*/
#ifndef EVALUATION_H_
#define EVALUATION_H_
#include <shogun/labels/Labels.h>
#include <shogun/base/SGObject.h>
namespace shogun
{
class CLabels;
/** enum which used to define whether an evaluation measure has to be minimized
* or maximized
*/
enum EEvaluationDirection
{
ED_MINIMIZE=0,
ED_MAXIMIZE=1
};
/** @brief Class Evaluation, a base class for other classes used to evaluate
* labels, e.g. accuracy of classification or mean squared error of regression.
*
* This class provides only interface for evaluation measures.
*/
class CEvaluation : public CSGObject
{
public:
/** default constructor */
CEvaluation() : CSGObject() { };
/** destructor */
virtual ~CEvaluation() { };
/** evaluate labels
*
* @param predicted labels for evaluating
* @param ground_truth labels assumed to be correct
*
* @return evaluation result
*/
virtual float64_t evaluate(CLabels* predicted, CLabels* ground_truth)=0;
/** set absolute indices of labels to be evaluated next used by multitask
* evaluations
*
* @param indices indices
*/
virtual void set_indices(SGVector<index_t> indices) { }
/** @return whether criterion has to be maximized or minimized */
virtual EEvaluationDirection get_evaluation_direction() const=0;
};
}
#endif /* EVALUATION_H_ */
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