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Meta-Rule Guided Mining
- Meta-rule can be in the rule form with partially instantiated predicates and constants
- P1(X, Y) ^ P2(X, W) => buys(X, “iPad”)
- The resulting rule derived can be
- age(X, “15-25”) ^ profession(X, “student”) => buys(X, “iPad”)
- In general, it can be in the form of
- P1 ^ P2 ^ … ^ Pl => Q1 ^ Q2 ^ … ^ Qr
- Method to find meta-rules
- Find frequent (l+r) predicates (based on min-support threshold)
- Push constants deeply when possible into the mining process (see the remaining discussions on constraint-push techniques)
- Use confidence, correlation, and other measures when possible
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