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What is Data Leakage¶ Data leakage is one of the most important issues for a data scientist to understand. If you don't know how to prevent it, leakag 阅读全文
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The Cross-Validation Procedure In cross-validation, we run our modeling process on different subsets of the data to get multiple measures of model qua 阅读全文
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# Most scikit-learn objects are either transformers or models. # Transformers are for pre-processing before modeling. The Imputer class (for filling i 阅读全文
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# Partial dependence plots# 改变单变量对最终预测结果的影响# 先fit出一种模型，然后取一行，不断改变某一特征，看它对最终结果的印象。# 但是，只使用一行不具有典型性# 所以对所有行执行上述操作，求均值 阅读全文