Figure S13.3 shows pairs of Bayes nets. In each, the original network is shown on the left. The reversed network, shown on the right, has all the arrows reversed. Therefore, the reversed network may not be able to represent all of the distributions that the original network is able to represent.

For each pair, add the minimal number of arrows to the reversed network such that it is guaranteed to be able to represent all the distributions that the original network is able to represent.

Figure S13.3

Transcribed Image Text:

B E (a) A B|F AL FD BIC B E A D|B ALL FIC C D B