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問題 60 / 65
Which evaluation method is most effective for detecting problems when a model shows high overall accuracy but performs significantly poorly on minority groups?
①Only perform standard cross-validation.
②Assess the overall performance using only the confusion matrix.
③Report a single mean accuracy across all data.
④Set the objective function to maximize only the positive rate.
⑤Conduct subgroup analyses to evaluate performance for each group and subgroup.