From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Wed, 6 May 2015 11:46:29 +0000 (+0100)
Subject: Properly scale bayes HAM probability.
X-Git-Tag: 0.9.0~83
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=0fb417de5ca09cae92923ceb27c33f4865ba7ad5;p=rspamd.git

Properly scale bayes HAM probability.
---

diff --git a/src/libstat/classifiers/bayes.c b/src/libstat/classifiers/bayes.c
index abb02bd90..d04341c3c 100644
--- a/src/libstat/classifiers/bayes.c
+++ b/src/libstat/classifiers/bayes.c
@@ -31,8 +31,6 @@
 #include "cfg_file.h"
 #include "stat_internal.h"
 
-#define LOCAL_PROB_DENOM 16.0
-
 static inline GQuark
 bayes_error_quark (void)
 {
@@ -209,6 +207,11 @@ bayes_classify (struct classifier_ctx * ctx,
 					"unexpected classifier error: cannot select desired statfile");
 			}
 			else {
+				/* Correctly scale HAM */
+				if (final_prob < 0.5) {
+					final_prob = 1.0 - final_prob;
+				}
+
 				rspamd_snprintf (sumbuf, 32, "%.2f%%", final_prob * 100.);
 				cur = g_list_prepend (NULL, sumbuf);
 				rspamd_task_insert_result (task,