Table 1.

Table 1 Cross-validation Results for RDiff and S2S Connection Datasets Using a C4.5 Decision Tree Classifier and Sample Semantic Patterns

Training Dataset	Classification Accuracy (Kappa)	Sample Semantic Patterns Generated Using C4. 5 Decision Tree Classifier
2002–2004	90% (0.79)	REL1 = AQ, TUI = functional-concept (potential-rel)
		REL1 = PAR, REL2 = PAR (unrelated)
2004–2006	91% (0.79)	REL1 = RO, RELA2 = mapped-from (potential rel)
		REL1 = PAR, REL2 = CHD (unrelated)
2005–2007	93% (0.81)	REL1 = RN, RELA2 = inverse-isa (potential rel)
		REL1 = PAR, RELA2 = inverse-isa(unrelated)

RO = Relationship Other; CHD = Child; PAR = Parent; SIB = Sibling; RN = Narrower Relationship.