Re: [exim] Bayesian filtering idea

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Autor: Tony Finch
Data:  
A: Alun
CC: Marc Sherman, exim-users
Assumpte: Re: [exim] Bayesian filtering idea
On Wed, 16 Mar 2005, Alun wrote:
> Marc Sherman (msherman@???) said, in message
>     <42383500.2050202@???>:

> >
> > Wouldn't an unmodified bayesian filter still account for that by
> > assigning a negative probability to the "Date: " token?
>
> Argh!
>
> You might be right, but I can't see the flaw in my reasoning. This is going
> to mess with my mind!


You're dealing with P(spam | date) and P(spam | no date) which are not
directly comparable (though reference to an A-Level probability textbook
should help).

Tony.
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