PostHoc Control Structure
Productions examine
- Current hypothesis
- Current example
- Background knowledge
Propose new hypotheses (if current example misclassified)
1. Initialize hypothesis
2. Error of omission (positive example classified as negative)
3. Error of commission (negative example classified as positive)
Each production set is ordered: Productions that make use of background knowledge have higher priority than productions that do not use background knowledge .
Combines inductive and analytical learning: Inductive productions may refine initial analytical hypothesis