from sklearn.model_selection import GridSearchCV
时间: 2023-11-12 09:07:59 浏览: 79
RandomForest_sklearn.zip_sklearn_sklearn RF_southern9qq_随机森林
GridSearchCV is a function in the scikit-learn library that performs an exhaustive search over a specified parameter grid for an estimator. It takes an estimator (a classifier or a regressor), a parameter grid (a dictionary of hyperparameter values to search over), a scoring metric (to evaluate the performance of the model), and a cross-validation strategy (to split the data into training and validation sets). It returns a fitted model with the best hyperparameters found through the search. GridSearchCV is commonly used for hyperparameter tuning, which involves finding the best set of hyperparameters that optimize the performance of a machine learning model.
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