John Hardin wrote:
Would there be any benefit to having an offline version - i.e. something that evaluates the log or a corpus to generate new meta rules, that could be added onto the default ruleset? For instance:cron @ 0200: sa_meta_eval > /etc/mail/spamassassin/metarules.cf /etc/init.d/spamassassin restart
This is definetly a good idea. You can create the SVM model offline from a logfile only, if it includes the rules that scored and the ham/spam status. However, you cannot generate metarules with SVMs, for that purpose you need a different learning algorithm (for example bayes, or decision trees).
However, SVM classification is very cheap, so once you created the model offline, you can use it online really quickly with a plugin.
Cheers, Chris
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