Definitions for "Bayesian filtering"
A statistical approach to determining whether an email is spam. Based on probability inference techniques pioneered by English mathematician Thomas Bayes. Bayesian filtering is one of the techniques used by Barracuda to determine if an email is spam or not.
A statistical technique whereby the system assigns a spam probability based on training from users. Bayesian filtering can greatly improve the accuracy of CanIt-PRO, and makes it harder for spammers to evade filtering. Bayesian email filters take advantage of Bayes' theorem. Bayes' theorem, in the context of spam, says that the probability that an email is spam, given that it has certain words in it, is equal to the probability of finding those certain words in spam email, times the probability that any email is spam, divided by the probability of finding those words in any email.
A statistical method of spam detection, Bayesian filtering uses the probability that certain words appearing in email are spam to identify emails that are likely spam.