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[classification] removing regularization update from gradient computation in logistic regression, as that's now handled by the optimizer

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Al
2017-04-02 14:32:14 -04:00
parent 64c049730a
commit a4431dbb27
2 changed files with 52 additions and 107 deletions
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7
src/logistic_regression.h
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@@ -27,9 +27,8 @@ may be called softmax regression.
#include "sparse_matrix.h"
bool logistic_regression_model_expectation(double_matrix_t *theta, sparse_matrix_t *x, double_matrix_t *p_y);
double logistic_regression_cost_function(double_matrix_t *theta, sparse_matrix_t *x, uint32_array *y, double_matrix_t *p_y, double lambda);
bool logistic_regression_gradient(double_matrix_t *theta, double_matrix_t *gradient, sparse_matrix_t *x, uint32_array *y, double_matrix_t *p_y, double lambda);
bool logistic_regression_gradient_sparse(double_matrix_t *theta, double_matrix_t *gradient, sparse_matrix_t *x, uint32_array *y, double_matrix_t *p_y,
uint32_array *x_cols, double lambda);
bool logistic_regression_model_expectation_sparse(sparse_matrix_t *theta, sparse_matrix_t *x, double_matrix_t *p_y);
double logistic_regression_cost_function(double_matrix_t *theta, sparse_matrix_t *x, uint32_array *y, double_matrix_t *p_y);
bool logistic_regression_gradient(double_matrix_t *theta, double_matrix_t *gradient, sparse_matrix_t *x, uint32_array *y, double_matrix_t *p_y);
#endif