Information, Computer and Network Security Terms Glossary and
Bayesian logic is a statistical algorithm that uses the knowledge of prior events to predict the likelihood of future events. Bayesian logic is an extension of the work of the 18th-century English mathematician Thomas Bayes. Bayes' theorem provided, for the first time, a mathematical method that could be used to calculate, given occurrences in prior trials, the likelihood (probability) of a target occurrence in future trials. Bayesian logic is used in anti-spam systems.