The sklearn.dummy.DummyClassifier is a class in the Python scikit-learn library. It is designed to be a simple baseline classifier that can be used for comparison with more complex models. This classifier is useful for assessing the performance of other classifiers, as it predicts classes based on simple predefined rules or strategies. It can be used to evaluate whether a more advanced classifier has actually learned meaningful patterns from the data or is just predicting based on random chance. The DummyClassifier can be easily implemented and is especially useful for binary or multiclass classification problems.
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