Belief revision is the process of changing beliefs to take into account a new piece of information. The logical formalization of belief revision is researched in philosophy, in databases, and in artificial intelligence for the design of rational agents.
What makes belief revision non-trivial is that several different ways for performing this operation may be possible. For example, if the current knowledge includes the three facts " is true", " is true" and "if and are true then is true", the introduction of the new information " is false" can be done preserving consistency only by removing at least one of the three facts. In this case, there are at least three different ways for performing revision. In general, there may be several different ways for changing knowledge.
Read more about Belief Revision: Revision and Update, Contraction, Expansion, Revision, Consolidation, and Merging, The AGM Postulates, Conditions Equivalent To The AGM Postulates, Contraction, The Ramsey Test, Non-monotonic Inference Relation, Foundational Revision, Model-based Revision and Update, Iterated Revision, Merging, Social Choice Theory, Complexity, Implementations
Famous quotes containing the word belief:
“We black women must forgive black men for not protecting us against slavery, racism, white men, our confusion, their doubts. And black men must forgive black women for our own sometimes dubious choices, divided loyalties, and lack of belief in their possibilities. Only when our sons and our daughters know that forgiveness is real, existent, and that those who love them practice it, can they form bonds as men and women that really can save and change our community.”
—Marita Golden, educator, author. Saving Our Sons, p. 188, Doubleday (1995)