neural_network/activation_function/ActivationFunctionLogistic.h

0001 /*
0002  * ActivationFunctionLogistic.h
0003  *
0004  *  Created on: Apr 23, 2016
0005  *      Author: Pawel Sznajder
0006  */
0007
0008 #ifndef ACTIVATIONFUNCTIONLOGISTIC_H_
0009 #define ACTIVATIONFUNCTIONLOGISTIC_H_
0010
0011 #include "ActivationFunction.h"
0012
0013 namespace NumA {
0014
0015 class ActivationFunctionLogistic: public ActivationFunction {
0016
0017 public:
0018
0019     static const unsigned int classId;
0020
0021     ActivationFunctionLogistic();
0022     virtual ~ActivationFunctionLogistic();
0023     virtual ActivationFunctionLogistic* clone() const;
0024
0025     virtual double evaluate(double input);
0026     virtual double evaluateFirstDerivative(double input);
0027     virtual double evaluateSecondDerivative(double input);
0028
0029 protected:
0030
0031     ActivationFunctionLogistic(const ActivationFunctionLogistic& other);
0032 };
0033
0034 }
0035
0036 #endif /* ACTIVATIONFUNCTIONLOGISTIC_H_ */