l*****n
发帖数: 328 | 1 If I have an undirected graph (markov chain) with 4 variables:
X1 - X2 - X3 - X4
Each variable can take 2 values: 0 or 1.
And I have transition matrices going from X1 to X2, X2 to X3, and X3 to X4:
X1 to X2:
0.1 0.7
0.8 0.3
(eg: if X1=0, then there's 0.1 probability that X2 will be 0, 0.7
probability that X2 will be 1. If X1=1, 0.8 prob that X2 will be 0, 0.3
probability that X2 will be 1)
X2 to X3
0.5 0.1
0.1 0.5
X3 to X4
0.9 0.3
0.1 0.3
Using the "forward pass" and "backward pass" method, find | c********t
发帖数: 27 | | d**n
发帖数: 198 | 3 homework
【在 l*****n 的大作中提到】
: If I have an undirected graph (markov chain) with 4 variables:
: X1 - X2 - X3 - X4
: Each variable can take 2 values: 0 or 1.
: And I have transition matrices going from X1 to X2, X2 to X3, and X3 to X4:
: X1 to X2:
: 0.1 0.7
: 0.8 0.3
: (eg: if X1=0, then there's 0.1 probability that X2 will be 0, 0.7
: probability that X2 will be 1. If X1=1, 0.8 prob that X2 will be 0, 0.3
: probability that X2 will be 1)
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