/usr/include/shogun/evaluation/DifferentiableFunction.h is in libshogun-dev 3.2.0-7.5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | /*
* 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) 2013 Roman Votyakov
* Copyright (C) 2012 Jacob Walker
*/
#ifndef CDIFFERENTIABLEFUNCTION_H_
#define CDIFFERENTIABLEFUNCTION_H_
#include <shogun/base/SGObject.h>
#include <shogun/lib/Map.h>
#include <shogun/lib/SGVector.h>
namespace shogun
{
/** @brief An abstract class that describes a differentiable function used for
* GradientEvaluation.
*/
class CDifferentiableFunction : public CSGObject
{
public:
/** default constructor */
CDifferentiableFunction();
virtual ~CDifferentiableFunction();
/** get the gradient
*
* @param parameters parameter's dictionary
*
* @return map of gradient. Keys are names of parameters, values are values
* of derivative with respect to that parameter.
*/
virtual CMap<TParameter*, SGVector<float64_t> >* get_gradient(
CMap<TParameter*, CSGObject*>* parameters)=0;
/** get the function value
*
* @return vector that represents the function value
*/
virtual SGVector<float64_t> get_value()=0;
};
}
#endif /* CDIFFERENTIABLEFUNCTION_H_ */
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