Overfitting Aviodance
Reduced Cost Pruning
- Adaption of Reduced Error Pruning (Quinlan, 1991)
- Divide training data in learning (70%) and pruning (30%) sets
Clause Prefix Strategy
- Add Prefixes of every clause to Pool of clauses for Reduced Cost Ordering
- Last literals are least reliable in FOCL
- Prefixes assure variables are bound before being used
S1 :- trestbps > 140 & oldpeak < .4 & cp = ABNANG
S1 :- trestbps > 140 & oldpeak < .4