Tanl Linguistic Pipeline

parse/desr/src/svm.h

/*
**  DeSR
**  src/svm.h
**  ----------------------------------------------------------------------
**  Copyright (c) 2000-2005 Chih-Chung Chang and Chih-Jen Lin
**  All rights reserved.
**  
**  Redistribution and use in source and binary forms, with or without
**  modification, are permitted provided that the following conditions
**  are met:
**  
**  1. Redistributions of source code must retain the above copyright
**  notice, this list of conditions and the following disclaimer.
**  
**  2. Redistributions in binary form must reproduce the above copyright
**  notice, this list of conditions and the following disclaimer in the
**  documentation and/or other materials provided with the distribution.
**  
**  3. Neither name of copyright holders nor the names of its contributors
**  may be used to endorse or promote products derived from this software
**  without specific prior written permission.
**  
**  
**  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
**  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
**  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
**  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR
**  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
**  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
**  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
**  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
**  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
**  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
**  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**  ----------------------------------------------------------------------
*/

#ifndef _LIBSVM_H
#define _LIBSVM_H

#define LIBSVM_VERSION 289

#ifdef __cplusplus
extern "C" {
#endif

extern int libsvm_version;

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 */
};

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

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

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

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

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

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

extern void (*svm_print_string) (const char *);

#ifdef __cplusplus
}
#endif

#endif /* _LIBSVM_H */

 

Copyright © 2005-2011 G. Attardi. Generated on 4 Mar 2011 by doxygen 1.6.1.