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#ifndef CLASSIFIERS_H
#define CLASSIFIERS_H
#include "../config.h"
#include "../mem_pool.h"
#include "../statfile.h"
#include "../tokenizers/tokenizers.h"
struct classifier_config;
struct worker_task;
struct classifier_ctx {
memory_pool_t *pool;
GHashTable *results;
struct classifier_config *cfg;
};
struct classify_weight {
const char *name;
long double weight;
};
/* Common classifier structure */
struct classifier {
char *name;
struct classifier_ctx* (*init_func)(memory_pool_t *pool, struct classifier_config *cf);
void (*classify_func)(struct classifier_ctx* ctx, statfile_pool_t *pool, GTree *input, struct worker_task *task);
void (*learn_func)(struct classifier_ctx* ctx, statfile_pool_t *pool,
stat_file_t *file, GTree *input, gboolean in_class, double *sum, double multiplier);
GList* (*weights_func)(struct classifier_ctx* ctx, statfile_pool_t *pool, GTree *input, struct worker_task *task);
};
/* Get classifier structure by name or return NULL if this name is not found */
struct classifier* get_classifier (char *name);
/* Winnow algorithm */
struct classifier_ctx* winnow_init (memory_pool_t *pool, struct classifier_config *cf);
void winnow_classify (struct classifier_ctx* ctx, statfile_pool_t *pool, GTree *input, struct worker_task *task);
void winnow_learn (struct classifier_ctx* ctx, statfile_pool_t *pool, stat_file_t *file, GTree *input,
gboolean in_class, double *sum, double multiplier);
GList *winnow_weights (struct classifier_ctx* ctx, statfile_pool_t *pool, GTree *input, struct worker_task *task);
/* Array of all defined classifiers */
extern struct classifier classifiers[];
#endif
/*
* vi:ts=4
*/
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