Spam Filter ISP Support Forum

  New Posts New Posts RSS Feed - Bayesian Filtering Unsatisfactory
  FAQ FAQ  Forum Search   Register Register  Login Login

Bayesian Filtering Unsatisfactory

 Post Reply Post Reply
Author
Jeff View Drop Down
Guest Group
Guest Group
Post Options Post Options   Thanks (0) Thanks(0)   Quote Jeff Quote  Post ReplyReply Direct Link To This Post Topic: Bayesian Filtering Unsatisfactory
    Posted: 11 May 2004 at 9:18pm

Is there going to be any way to get false negative emails back into the corpus DB? I've reduces the Bayesian threshold to 2% but it still only catches a few a day. Currently my Spam to Good email ratio is about 4:1 but I suspect it is more like 6:1. Can you update us on the status of the capability to reverse email falsely tagged as good?

One thought I have is to have an "optional" Good Email DB similar to the Quarantine DB. If one chose to use this optional DB, they could go through and send false negatives (spam) to the corpus and reverse the good score they got before.  

I think getting false negatives out of the DB is crucial to get any kind of accurate filtering. At a probablitiy of 95% setting, it would take 20 spam catches to reverse one false negative.

Thanks.

-jeff

 

Back to Top
LogSat View Drop Down
Admin Group
Admin Group
Avatar

Joined: 25 January 2005
Location: United States
Status: Offline
Points: 4065
Post Options Post Options   Thanks (0) Thanks(0)   Quote LogSat Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2004 at 12:15am

Jeff,

Have you tried, just for the initial training period, to implement more aggressive filtering that will catch more spam? Rejecting  "no reverse DNS", adding more powerful keyword searhes, and more MAPS servers could increase your spam/good ratio to the more realistic 6:1 - 8:1 as you correctly pointed out.

We will provide for the ability to add "false negatives" soon, but it will still be very helpful to have strong training during the initial deployment.

Roberto F.
LogSat Software

Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.047 seconds.