On 2/28/02 5:28 PM, "Scott Walde" <[EMAIL PROTECTED]> wrote:

> Would it make sense to take a look at the ratio of spam to non-spam for
> each given rule, and to constrain the score to either -ve or +ve depending
> on which way the ratio leaned?  This way, "monsterhut" may wander
> randomly, but it will only wander randomly in the +ve direction, or peg
> itself at zero.  I can't imagine any situation where there were more spams
> than non-spams that trigger a rule, yet you want a -ve score. (and
> vice-versa)

I'm basically planning something like this.  The scores are initialized this
way now; I'm planning on making the evolution step of the GA tend to move
the values of scores in the +ve direction for highly-spammy rules, and tend
to move them in the -ve direction for nonspam rules.  Basically, when adding
gaussian noise to the score, I'll shift the noise either +ve or -ve by some
amount based on the ratio of spam/nonspam for that particular rule.

C


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