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StopAutosklearnifanensembleerrorhappens

作者：手机用户2502857067 | 来源：互联网 | 2023-10-12 14:03
Becausethisrenderstheresultsuseless.该提问来源于开源项目：automl/auto-sklearn

Because this renders the results useless.

该提问来源于开源项目：automl/auto-sklearn

Here's a minimal example code to reproduce the behavior

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import sklearn.model_selection

import sklearn.datasets

import sklearn.metrics

import numpy as np

import pandas as pd



import autosklearn.classification

import autosklearn.metrics

from sklearn.metrics import confusion_matrix, recall_score



def main():

    X, y &＃061; sklearn.datasets.load_breast_cancer(return_X_y&＃061;True)

    X_train, X_test, y_train, y_test &＃061; sklearn.model_selection.train_test_split(X, y, random_state&＃061;1)



    automl &＃061; autosklearn.classification.AutoSklearnClassifier(

        time_left_for_this_task&＃061;90,

        per_run_time_limit&＃061;30,

        delete_tmp_folder_after_terminate&＃061;False,

        resampling_strategy&＃061;&＃039;cv&＃039;,

        resampling_strategy_arguments&＃061;{&＃039;folds&＃039;: 5}

    )



    scorer &＃061; autosklearn.metrics.make_scorer(&＃039;recall&＃039;, recall_score, pos_label&＃061;0)



    automl.fit(X_train.copy(), y_train.copy(), dataset_name&＃061;&＃039;breast_cancer&＃039;, metric&＃061;scorer)

    automl.refit(X_train.copy(), y_train.copy())



    print(automl.show_models())



    predictions &＃061; automl.predict(X_test)

    print("Accuracy score", sklearn.metrics.accuracy_score(y_test, predictions))

    print(confusion_matrix(y_test, predictions))





if __name__ &＃061;&＃061; &＃039;__main__&＃039;:

    main()

And here's the standard output (Note that I added a print line from the \autosklearn\ensemble_builder.py

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PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:15:58,481:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:15:58,494:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:00,498:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:02,502:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:04,507:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:06,510:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:08,514:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:10,518:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:12,522:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:14,527:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:16,531:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:18,535:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:20,541:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:22,545:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:24,549:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:26,552:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:28,556:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:30,561:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:32,564:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:34,568:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:36,571:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:38,583:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:40,587:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:42,593:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:44,598:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:46,604:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:48,607:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:50,611:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:52,617:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:54,620:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:56,624:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:16:58,630:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:17:00,633:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:17:02,637:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:17:04,642:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:17:06,646:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:17:08,649:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:17:10,653:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:17:12,657:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:17:14,661:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:17:16,665:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:17:18,669:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

PRINTING DUMMY_SCORE FROM ENSEMBLE_BUILDER: 1.0

[WARNING] [2018-12-01 23:17:20,672:EnsembleBuilder(1):breast_cancer] No models better than random - using Dummy Score!

[(1.000000, MyDummyClassifier(configuration&＃061;1, init_params&＃061;None, random_state&＃061;None)),

]

Accuracy score 0.38461538461538464

[[55  0]

 [88  0]]



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