diff options
Diffstat (limited to 'src/classifiers/winnow.c')
| -rw-r--r-- | src/classifiers/winnow.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/src/classifiers/winnow.c b/src/classifiers/winnow.c index 4d728b8bc..eaa9343fe 100644 --- a/src/classifiers/winnow.c +++ b/src/classifiers/winnow.c @@ -27,6 +27,7 @@ */ #include "classifiers.h" +#include "../tokenizers/tokenizers.h" #include "../main.h" #include "../filter.h" #include "../cfg_file.h" @@ -127,10 +128,11 @@ void winnow_classify (struct classifier_ctx *ctx, statfile_pool_t * pool, GTree * input, struct worker_task *task) { struct winnow_callback_data data; - char *sumbuf; + char *sumbuf, *value; double res = 0., max = 0.; GList *cur; struct statfile *st, *sel = NULL; + int nodes, minnodes; g_assert (pool != NULL); g_assert (ctx != NULL); @@ -141,6 +143,15 @@ winnow_classify (struct classifier_ctx *ctx, statfile_pool_t * pool, GTree * inp data.now = time (NULL); data.ctx = ctx; + if (ctx->cfg->opts && (value = g_hash_table_lookup (ctx->cfg->opts, "min_tokens")) != NULL) { + minnodes = strtol (value, NULL, 10); + nodes = g_tree_nnodes (input) / FEATURE_WINDOW_SIZE; + if (nodes < minnodes) { + msg_info ("do not classify message as it has too few tokens: %d, while %d min", nodes, minnodes); + return; + } + } + if (ctx->cfg->pre_callbacks) { #ifdef WITH_LUA cur = call_classifier_pre_callbacks (ctx->cfg, task); @@ -205,6 +216,8 @@ winnow_weights (struct classifier_ctx *ctx, statfile_pool_t * pool, GTree * inpu GList *cur, *resl = NULL; struct statfile *st; struct classify_weight *w; + char *value; + int nodes, minnodes; g_assert (pool != NULL); g_assert (ctx != NULL); @@ -214,6 +227,15 @@ winnow_weights (struct classifier_ctx *ctx, statfile_pool_t * pool, GTree * inpu data.count = 0; data.now = time (NULL); data.ctx = ctx; + + if (ctx->cfg->opts && (value = g_hash_table_lookup (ctx->cfg->opts, "min_tokens")) != NULL) { + minnodes = strtol (value, NULL, 10); + nodes = g_tree_nnodes (input) / FEATURE_WINDOW_SIZE; + if (nodes < minnodes) { + msg_info ("do not classify message as it has too few tokens: %d, while %d min", nodes, minnodes); + return NULL; + } + } cur = ctx->cfg->statfiles; while (cur) { @@ -263,6 +285,8 @@ winnow_learn (struct classifier_ctx *ctx, statfile_pool_t *pool, stat_file_t *fi .count = 0, .multiplier = multiplier }; + char *value; + int nodes, minnodes; g_assert (pool != NULL); g_assert (ctx != NULL); @@ -274,6 +298,15 @@ winnow_learn (struct classifier_ctx *ctx, statfile_pool_t *pool, stat_file_t *fi data.file = file; + if (ctx->cfg->opts && (value = g_hash_table_lookup (ctx->cfg->opts, "min_tokens")) != NULL) { + minnodes = strtol (value, NULL, 10); + nodes = g_tree_nnodes (input) / FEATURE_WINDOW_SIZE; + if (nodes < minnodes) { + msg_info ("do not learn message as it has too few tokens: %d, while %d min", nodes, minnodes); + *sum = 0; + return; + } + } if (data.file != NULL) { statfile_pool_lock_file (pool, data.file); |