Print Page | Close Window

bayesian filter

Printed From: LogSat Software
Category: Spam Filter ISP
Forum Name: Spam Filter ISP Support
Forum Description: General support for Spam Filter ISP
URL: http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6976
Printed Date: 17 November 2017 at 9:51pm


Topic: bayesian filter
Posted By: ImInAfrica
Subject: bayesian filter
Date Posted: 25 August 2011 at 5:06pm
Hello,
somehow my Bayesian filter has stopped filtering/recognizing spam.
what is the correct procedure to reset it, and how can we 'teach' it spam?

thank you in advance.




Replies:
Posted By: LogSat
Date Posted: 25 August 2011 at 10:03pm
Hi ImInAfrica,

To reset the Bayesian database you can:
  • stop SpamFilter
  • delete (or rename) the SpamFilter/corpus directory
  • restart SpamFilter
The statistical engine kicks in after 5,000 non-spam and 5,000 spam emails have been received (these "learning" values are customizable by editing the SpamFilter.ini file).


-------------
Roberto Franceschetti

http://www.logsat.com" rel="nofollow - LogSat Software

http://www.logsat.com/sfi-spam-filter.asp" rel="nofollow - Spam Filter ISP


Posted By: ImInAfrica
Date Posted: 26 August 2011 at 12:14pm
thanks Roberto. how can we go about teaching it a little quicker then just waiting for emails?


Posted By: LogSat
Date Posted: 26 August 2011 at 4:16pm
In the SpamFilter.ini file, the value:
MinEmailsForBayesKickIn=5000
is used to determine the minimum number of "good" and the minimum number of "spam" emails that must be received before the bayesian filter starts to stop spam. You could lower those values, but doing so may decrease the accuracy of the filter. 
As the email "types" that reach each company is different on average than another (a hospital will receive different emails than a school does) you *must* receive actual emails to train the bayesian filter there are no shortcuts, sorry!


-------------
Roberto Franceschetti

http://www.logsat.com" rel="nofollow - LogSat Software

http://www.logsat.com/sfi-spam-filter.asp" rel="nofollow - Spam Filter ISP


Posted By: yapadu
Date Posted: 28 August 2011 at 1:54am
Originally posted by LogSat LogSat wrote:

As the email "types" that reach each company is different on average than another (a hospital will receive different emails than a school does) you *must* receive actual emails to train the bayesian filter there are no shortcuts, sorry!


We do not use or offer bayesian filter to our customers, in part because of what you have listed here.  There is currently no way to make it domain specific so the usefulness is reduced.


-------------
--------------------------------------------------------------
I am a user of SF, not an employee. Use any advice offered at your own risk.



Print Page | Close Window