def test_binary_classification(self): train_features = np.array([[0.0286274, 0.41107054, 0.30557073], [0.18646135, 0.71026038, 0.87030804], [0.46904668, 0.96190886, 0.85772885], [0.40327128, 0.5739354, 0.21895921], [0.53548, 0.9645708, 0.56493308], [0.80917639, 0.78891976, 0.96257564], [0.10951679, 0.75733494, 0.10935291]]) train_labels = np.array([0, 0, 0, 1, 0, 0, 1]) gp_repurposer = GpRepurposer(self.source_model, self.source_model_layers) gp_repurposer.target_model = gp_repurposer._train_model_from_features( train_features, train_labels, {'l1': np.arange(0, 3)}) self.assertTrue( len(gp_repurposer.target_model) == 1, "Number of GP models expected: 1. Got: {}".format( len(gp_repurposer.target_model))) # Validate predicted probabilities test_features = np.array([[0.63747595, 0.86516482, 0.21255967], [0.33403457, 0.43162212, 0.77119909], [0.1678248, 0.41870605, 0.37232554]]) test_labels = np.array([1, 0, 0]) expected_probabilities = np.array([[0.48597323, 0.51402677], [0.67488224, 0.32511776], [0.55386502, 0.44613498]]) predicted_probabilities = gp_repurposer._predict_probability_from_features( test_features) self.assertTrue( np.allclose(predicted_probabilities, expected_probabilities)) # Validate predicted labels predicted_labels = gp_repurposer._predict_label_from_features( test_features) self.assertTrue(np.array_equal(predicted_labels, test_labels))
def test_predict_label_from_features(self): gp_repurposer = GpRepurposer(self.source_model, self.source_model_layers, apply_l2_norm=True) gp_repurposer.target_model = gp_repurposer._train_model_from_features( self.train_features[:self.num_data_points_to_train], self.train_labels[:self.num_data_points_to_train], {'l1': self.train_feature_indices}) predicted_labels = gp_repurposer._predict_label_from_features(self.test_features [:self.num_data_points_to_predict]) self._validate_prediction_results(predicted_labels, test_predict_probability=False, expected_accuracy=self.expected_accuracy_from_features, num_predictions=self.num_data_points_to_predict)