Problem 2 Consider the BN that you constructed for your own domain in Problem 5, Chapter 2.

(Or if you haven’t completed this problem, use an example network from elsewhere in this text, or one that comes with a BN software package.)

1. Identify the type of each node: target/query, evidence/observation, context, controllable.

2. Re-assess your choice of nodes and values, particularly if you discretized a continuous variable, in the light of the discussion in ????9.3.1.

3. Label each arc with the relationship that is being modeled, using the relationships described in ????9.3.2 or others you might think of.

4. Use Matilda to investigate the dependence and independence relationships in your network.

5. Can you map the probabilities in the CPTs into a qualitative scale, as in ????9.3.3.2?