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Why haven't I seen anything blocked by Bayesian Filter?

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benny View Drop Down
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    Posted: 14 December 2004 at 11:17am

corpus.ini

[Messages]
Spam=5566
Good=46480

 

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Joined: 25 January 2005
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Post Options Post Options   Thanks (0) Thanks(0)   Quote LogSat Quote  Post ReplyReply Direct Link To This Post Posted: 14 December 2004 at 6:12pm
Benny,

Please see http://www.logsat.com/spamfilter/forums/showmessage.asp?messageID=4620 for an explanation.

Roberto F. LogSat Software
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ktrunkett Quote  Post ReplyReply Direct Link To This Post Posted: 15 December 2004 at 9:33pm

my corpus is:

[Messages]
Spam=31412
Good=28248

I've only seen 4 emails get caught by the Bayesian filter, and they were all false positives. 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote LogSat Quote  Post ReplyReply Direct Link To This Post Posted: 17 December 2004 at 12:02am
Kriss, In average spam messages are 5-20 times more that good messages. Our own corpus.ini file looks like this:

[Messages] Spam=9105146 Good=559984

We receive 20x more spam than good emails. Still, under these conditions, during the past 3 days we blocked 100,000 emails using MAPS filter, 90,000 using blacklisted countries, and only 1,000 using Bayesian filtering.

Being in yours and Benny's case spam and clean counts so close, it may be hard for the statistical filter to accurately determine what is spam and what is not. If you wish we can try emailing you our own corpus database to see if it makes a difference.

Roberto F. LogSat Software
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