def setUp(self): self.n_train = 200 self.n_test = 100 self.contamination = 0.1 self.roc_floor = 0.8 self.X_train, self.y_train, self.X_test, self.y_test = generate_data( n_train=self.n_train, n_test=self.n_test, contamination=self.contamination, random_state=42) detectors = [KNN(), LOF(), OCSVM()] self.clf = SimpleDetectorAggregator(base_estimators=detectors, method='maximization', contamination=self.contamination) self.clf.fit(self.X_train)
def construct_simple_aggregator(method): from combo.models.detector_comb import SimpleDetectorAggregator model = SimpleDetectorAggregator(construct_raw_base_estimators(), method=method) return model
class Maximization(unittest.TestCase): def setUp(self): self.n_train = 200 self.n_test = 100 self.contamination = 0.1 self.roc_floor = 0.8 self.X_train, self.y_train, self.X_test, self.y_test = generate_data( n_train=self.n_train, n_test=self.n_test, contamination=self.contamination, random_state=42) detectors = [KNN(), LOF(), OCSVM()] self.clf = SimpleDetectorAggregator(base_estimators=detectors, method='maximization', contamination=self.contamination) self.clf.fit(self.X_train) def test_parameters(self): assert (hasattr(self.clf, 'decision_scores_') and self.clf.decision_scores_ is not None) assert (hasattr(self.clf, 'labels_') and self.clf.labels_ is not None) assert (hasattr(self.clf, 'threshold_') and self.clf.threshold_ is not None) assert (hasattr(self.clf, '_mu') and self.clf._mu is not None) assert (hasattr(self.clf, '_sigma') and self.clf._sigma is not None) def test_train_scores(self): assert_equal(len(self.clf.decision_scores_), self.X_train.shape[0]) def test_prediction_scores(self): pred_scores = self.clf.decision_function(self.X_test) # check score shapes assert_equal(pred_scores.shape[0], self.X_test.shape[0]) # check performance assert_greater(roc_auc_score(self.y_test, pred_scores), self.roc_floor) def test_prediction_labels(self): pred_labels = self.clf.predict(self.X_test) assert_equal(pred_labels.shape, self.y_test.shape) def test_prediction_proba(self): pred_proba = self.clf.predict_proba(self.X_test) assert_greater_equal(pred_proba.min(), 0) assert_less_equal(pred_proba.max(), 1) def test_prediction_proba_linear(self): pred_proba = self.clf.predict_proba(self.X_test, proba_method='linear') assert_greater_equal(pred_proba.min(), 0) assert_less_equal(pred_proba.max(), 1) def test_prediction_proba_unify(self): pred_proba = self.clf.predict_proba(self.X_test, proba_method='unify') assert_greater_equal(pred_proba.min(), 0) assert_less_equal(pred_proba.max(), 1) def test_prediction_proba_parameter(self): with assert_raises(ValueError): self.clf.predict_proba(self.X_test, proba_method='something') def tearDown(self): pass