Mail::SpamAssassin::Plugin::Bayes - determine spammishness using a Bayesian classifier
This is a Bayesian-style probabilistic classifier, using an algorithm based on the one detailed in Paul Graham's A Plan For Spam paper at:
It also incorporates some other aspects taken from Graham Robinson's webpage on the subject at:
And the chi-square probability combiner as described here:
The results are incorporated into SpamAssassin as the BAYES_* rules.