© 2000 Todd
Neller. A.I.M.A. text figures © 1995
Prentice Hall. Used by permission.
Joint
Probability Computation Example
.20
P(a)
.20
F
.80
T
P(b)
a
.05
F
.20
T
P(c)
a
.60
F
.80
T
P(e)
c
.05
F
F
.80
F
T
.80
T
F
.80
T
T
P(d)
c
b
From
gathered evidence,
e is True,
d is False.
We wish to
(eventually) estimate P(a).Write simplified conditional
probability expressions (with a normalizing constant) for each variable
without evidence.