Bayesian inference is one of two dominant approaches to statistical inference. The word Bayesian refers to the influence of Reverend Thomas Bayes. Bayesian inference is a modern revival of the classical definition of probability.
Michael Strube, and Simone Paolo Ponzetto. Proceedings of the 21st National Conference on Artificial Intelligence - Volume 2, 21, page 1419--1424. Menlo Park, CA; Cambridge, MA; London; AAAI Press; MIT Press; 1999, AAAI Press, (2006)