neural_network/activation_function/ActivationFunction.h

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