pmlpp/mlpp/log_reg/log_reg.h

55 lines
1.4 KiB
C++

#ifndef MLPP_LOG_REG_H
#define MLPP_LOG_REG_H
//
// LogReg.hpp
//
// Created by Marc Melikyan on 10/2/20.
//
#include "core/math/math_defs.h"
#include <string>
#include <vector>
class MLPPLogReg {
public:
MLPPLogReg(std::vector<std::vector<real_t>> inputSet, std::vector<real_t> outputSet, std::string reg = "None", real_t lambda = 0.5, real_t alpha = 0.5);
std::vector<real_t> modelSetTest(std::vector<std::vector<real_t>> X);
real_t modelTest(std::vector<real_t> x);
void gradientDescent(real_t learning_rate, int max_epoch, bool UI = 1);
void MLE(real_t learning_rate, int max_epoch, bool UI = 1);
void SGD(real_t learning_rate, int max_epoch, bool UI = 1);
void MBGD(real_t learning_rate, int max_epoch, int mini_batch_size, bool UI = 1);
real_t score();
void save(std::string fileName);
private:
real_t Cost(std::vector<real_t> y_hat, std::vector<real_t> y);
std::vector<real_t> Evaluate(std::vector<std::vector<real_t>> X);
real_t Evaluate(std::vector<real_t> x);
void forwardPass();
std::vector<std::vector<real_t>> inputSet;
std::vector<real_t> outputSet;
std::vector<real_t> y_hat;
std::vector<real_t> weights;
real_t bias;
int n;
int k;
real_t learning_rate;
// Regularization Params
std::string reg;
real_t lambda; /* Regularization Parameter */
real_t alpha; /* This is the controlling param for Elastic Net*/
};
#endif /* LogReg_hpp */