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决策树分类(ID3,C4.5,CART)
(1)ID3和C4.5的最优索引以及决策树形图是相同的,而CART的最优索引以及决策树形图与前面两者不同,这与它们的选择标准以及训练集有关; (2)但同时我们也发现,三种算法对测试集的测试结果是相同的,经过后期手动匹配,结果完全正确,这说明我们的 ...
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