© 2000 Todd Neller.
A.I.M.A. t
ext
figures
© 1995 Prentice Hall.
Used by
permission.
Bayes’ Rule
•
Bayes’ Rule underlies all modern AI
systems for probabilistic inference
•
two forms of product rule:
–
P(A
Ù
B) = P(A|B) P(B)
–
P(A
Ù
B) = P(B|A) P(A)
•
Now use these two to form an equation for:
–
P(B|A) = P(A|B) P(B) / P(A)