gctl_ai/lib/dnn/activation.h

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2024-09-10 20:15:33 +08:00
/********************************************************
*
*
*
*
*
*
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#ifndef _GCTL_DNN_ACTIVATION_H
#define _GCTL_DNN_ACTIVATION_H
#include "gctl/core.h"
#include "gctl/io.h"
#include "gctl/algorithm.h"
#include "config.h"
#ifdef GCTL_AI_OPENMP
#include "omp.h"
#endif // GCTL_AI_OPENMP
namespace gctl
{
enum activation_type_e
{
Identity,
Mish,
ReLU,
PReLU,
Sigmoid,
SoftMax,
Tanh,
Unknown,
};
class dnn_activation
{
public:
dnn_activation();
virtual ~dnn_activation();
virtual void activate(const matrix<double> &z, matrix<double> &a) = 0;
virtual void apply_jacobian(const matrix<double> &z, const matrix<double> &a,
const matrix<double> &f, matrix<double> &g) = 0;
virtual std::string activation_name() const;
virtual activation_type_e activation_type() const;
};
}
#endif // _GCTL_DNN_ACTIVATION_H