Inductive bias refers to your suspicion that if the sun has risen for the last billion days in a row, then it may rise tomorrow as well. Since it is logically possible that the laws of physics will arbitrarily cease to work and that the sun will not rise tomorrow, coming to this conclusion requires an inductively biased prior.
G. Kokai. 7th WSEAS International Multiconference on Circuits,
Systems, Communications and Computers (WSEAS CSCC), Rethymno, Crete Island, Greece, (July 2002)
P. Reiser, and P. Riddle. Proceedings of the Congress on Evolutionary
Computation, 2, page 1338--1346. Mayflower Hotel, Washington D.C., USA, IEEE Press, (6-9 July 1999)
H. Juille, and J. Pollack. Proceedings of the Fifteenth National Conference on
Artificial Intelligence (AAAI-98) Tenth Conference on
Innovative Applications of Artificial Intelligence
(IAAI-98), Madison, Wisconsin, USA, AAAI Press Books, (26-30 July 1998)