Bayesian AI Tutorial: Laboratory Notes 

• If your machine is currently running Debian Linux, please reboot using Action -> reboot , choosing operating system Windows XP.
• Login to Windows XP with user name bayesian and password netica.
• Run a browser and go to www.csse.monash.edu.au/bai/ and select link to Lab Notes
to bring up this page.
• Run Netica from the short cut on the desk top.
• Set up a working directory for your example networks, either under My Documents or on your usb stick
• You can open Netica example networks from:
  • My Computer -> Netica -> Netica 1.12 -> Examples -> Tutorial
  • Go to www.csse.monash.edu.au/bai/ and select link to Example BNs
• Before starting on a lab assignment question (PART A, or PART B), look at an example network and familiarise yourself with the following functionality
  • Network -> Compile : also using "lightning" icon
  • Adding evidence to a node (by clicking on the node value)
  • When you add evidence, beliefs will be updated if Network -> Automatic Updating is turned on. Otherwise, you can do it manually via Network -> Update.
  • Look at node details by double clicking on the node.
  • The most important node information is its type ("nature" means ordinary BN node), whether it is discrete or continuous, the possible States it can take, and its CPT (look at using table button).
  • Try changing some of the entries in the CPT. Note you have to re-compile for the changes to take effect.
• Once you've had a play with some existing networks, pair up with someone next to you and attempt either PART A or PART B.