Pruning Example(Quinlan, C4.5 Programs for Machine Learning, p.38)

• Originalphysician fee freeze = n: adopt budget resolution = y: democrat (151) adopt budget resolution = u: democrat (1) adopt budget resolution = n: education spending = n: democrat (6) education spending = y: democrat (9) education spending = u: republican (1)physician fee freeze = y: ...

• Prunedphysician fee freeze = n: democratphysician fee freeze = y: ...

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