Knowledge
NYNEX MAX
- Rule-Based Expert System to troubleshoot telephone network
- Used at over 100 sites
- Each site has slightly different requirements
- Uses 16 numeric parameters to customize to sites
- Data is very noisy (Danyluk & Provost, 1993)
- Subset of rule-base used at UCI is 32.4% accurate
- Real Rule Base is probably much work accurate, so don’t think Nynex is incompetent
FOCL
- Inductive learning based on FOIL
- Explanation-based learning using information gain
- Uses Reduced Cost Ordering postprocessor to build decision list