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Machine Learning - Classification Problem

原文 2020-03-17 11:23:15 3 1 python/ machine-learning/ classification/ text-classification

是否有任何命令可以在预测模型中的任何值时调用错误分类的值，简而言之就是那些分类不准确的值。

1 answers

There is no such method in the scikit-learn API. You can however write it yourself in a few lines:

import numpy as np

X_train, X_test, y_train, y_test = ...  # some dataset
model = ...  # some scikit learn model
model.fit(X_train, y_train)
y_pred = model.predict(X_test)

# command to get misclassified examples assuming you have numpy arrays
X_test[np.argwhere(y_pred != y_test)]

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