# Formulējiet un uzrakstiet definīciju, kas ir roc auc. # Kā tiek aprēķināts roc_auc_score? # Uzrakstiet funkciju, kas aprēķina roc_auc_score saskaņā ar uzrakstīto definīciju. # Un jebkuram klasifikāciju skaitam ar noteiktu prioritātes kārtību? # Modelis darbojas šādi # y_score[i] >= slieksnis -> y_pred[i] = 1 # y_score[i] < slieksnis -> y_pred[i] = 0 def test_roc_aur_score(): y_true = [0, 0, 0, 1, 0, 0] y_score = [0.2, 0.4, 0.31, 0.6, 0.3, 0.7] res_metric = roc_auc_score(y_true, y_score) assert res_metric == 0.8 y_true = [0, 1, 0, 0, 0, 1] y_score = [0.7, 0.6, 0.31, 0.31, 0.3, 0.2] res_metric = roc_auc_score(y_true, y_score) assert res_metric == 0.375 y_true = [0, 0, 0, 1, 0, 0] y_score = [0.2, 0.4, 0.31, 0.8, 0.3, 0.7] res_metric = roc_auc_score(y_true, y_score) assert res_metric == 1 y_true = [0, 0, 0, 0, 0, 0] y_score = [0.2, 0.4, 0.31, 0.8, 0.3, 0.7] res_metric = roc_auc_score(y_true, y_score) assert res_metric == 0 # Bonus testi vairākām klasēm y_true = [0, 1, 0, 0.5, 0, 1] y_score = [0.7, 0.6, 0.31, 0.31, 0.3, 0.2] res_metric = roc_auc_score(y_true, y_score) assert res_metric == 0. y_true = [0, 0.1, 0.2, 0.3, 0.4, 0.6] y_score = [0, 0.1, 0.2, 0.3, 0.4, 0.6] res_metric = roc_auc_score(y_true, y_score) assert res_metric == 1