svm_c_builder.h

来自「ADaM is a data mining and image processi」· C头文件 代码 · 共 77 行

#ifndef _LIBSVM_H
#define _LIBSVM_H

#ifdef __cplusplus
extern "C" {
#endif

struct svm_node
{
	int index;
	double value;
};

struct svm_problem
{
	int l;
	double *y;
	struct svm_node **x;
};

enum { C_SVC, NU_SVC, ONE_CLASS, EPSILON_SVR, NU_SVR };	/* svm_type */
enum { LINEAR, POLY, RBF, SIGMOID, PRECOMPUTED }; /* kernel_type */

struct svm_parameter
{
	int svm_type;
	int kernel_type;
	int degree;	/* for poly */
	double gamma;	/* for poly/rbf/sigmoid */
	double coef0;	/* for poly/sigmoid */

	/* these are for training only */
	double cache_size; /* in MB */
	double eps;	/* stopping criteria */
	double C;	/* for C_SVC, EPSILON_SVR and NU_SVR */
	int nr_weight;		/* for C_SVC */
	int *weight_label;	/* for C_SVC */
	double* weight;		/* for C_SVC */
	double nu;	/* for NU_SVC, ONE_CLASS, and NU_SVR */
	double p;	/* for EPSILON_SVR */
	int shrinking;	/* use the shrinking heuristics */
	int probability; /* do probability estimates */
};

//******************************************************************************
//***************** modifications R.R. -- 08/01/2006 ***************************
//***************** exporter les fonctions dans des DLL ************************
//******************************************************************************

__declspec(dllexport) struct svm_model* __stdcall svm_train(const struct svm_problem *prob, const struct svm_parameter *param);
__declspec(dllexport) void svm_cross_validation(const struct svm_problem *prob, const struct svm_parameter *param, int nr_fold, double *target);

__declspec(dllexport) int __stdcall svm_save_model(const char *model_file_name, const struct svm_model *model);
__declspec(dllexport) struct svm_model* __stdcall svm_load_model(const char *model_file_name);

__declspec(dllexport) int __stdcall svm_get_svm_type(const struct svm_model *model);
__declspec(dllexport) int __stdcall svm_get_nr_class(const struct svm_model *model);
__declspec(dllexport) void __stdcall svm_get_labels(const struct svm_model *model, int *label);
__declspec(dllexport) double __stdcall svm_get_svr_probability(const struct svm_model *model);

__declspec(dllexport) void __stdcall svm_predict_values(const struct svm_model *model, const struct svm_node *x, double* dec_values);
__declspec(dllexport) double __stdcall svm_predict(const struct svm_model *model, const struct svm_node *x);
__declspec(dllexport) double __stdcall svm_predict_probability(const struct svm_model *model, const struct svm_node *x, double *prob_estimates);

__declspec(dllexport) void __stdcall svm_destroy_model(struct svm_model *model);
__declspec(dllexport) void __stdcall svm_destroy_param(struct svm_parameter *param);

__declspec(dllexport) const char* __stdcall svm_check_parameter(const struct svm_problem *prob, const struct svm_parameter *param);
__declspec(dllexport) int __stdcall svm_check_probability_model(const struct svm_model *model);

#ifdef __cplusplus
}
#endif

#endif /* _LIBSVM_H */