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我定义了一个外部评分函数来确定手写数字的聚类准确性,但无法弄清楚如何将该函数与GridSearchCV结合使用。是否可以使用网格搜索与外部定义的评分函数?
s = GridSearchCV(estimator = pipe_cl,
param_grid = param_distributions,
scoring = my_scorer,
n_jobs=-1)
gs.fit(X_train, y_train)
y_pred_km = gs.predict(X_test)
my_scorer = make_scorer(clustering_accuracy_score(y_test, y_pred_km))
什么是y_pred_km? –
假设是从kmeans获得的集群标签。 –