Python metrics.F1Measure方法代码示例

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def __init__(self, vocab: Vocabulary,
                 text_field_embedder: TextFieldEmbedder,
                 verbose_metrics: bool = False,
                 dropout: float = 0.2,
                 initializer: InitializerApplicator = InitializerApplicator(),
                 regularizer: Optional[RegularizerApplicator] = None,
                 ) -> None:
        super(TextClassifier, self).__init__(vocab, regularizer)

        self.text_field_embedder = text_field_embedder
        self.dropout = torch.nn.Dropout(dropout)
        self.num_classes = self.vocab.get_vocab_size("labels")
        self.classifier_feedforward = torch.nn.Linear(self.text_field_embedder.get_output_dim()  , self.num_classes)

        self.label_accuracy = CategoricalAccuracy()
        self.label_f1_metrics = {}

        self.verbose_metrics = verbose_metrics

        for i in range(self.num_classes):
            self.label_f1_metrics[vocab.get_token_from_index(index=i, namespace="labels")] = F1Measure(positive_label=i)
        self.loss = torch.nn.CrossEntropyLoss()

        initializer(self) 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def __init__(self, vocab: Vocabulary,
                 text_field_embedder: TextFieldEmbedder,
                 text_encoder: Seq2SeqEncoder,
                 classifier_feedforward: FeedForward,
                 verbose_metrics: False,
                 initializer: InitializerApplicator = InitializerApplicator(),
                 regularizer: Optional[RegularizerApplicator] = None,
                 ) -> None:
        super(TextClassifier, self).__init__(vocab, regularizer)

        self.text_field_embedder = text_field_embedder
        self.num_classes = self.vocab.get_vocab_size("labels")
        self.text_encoder = text_encoder
        self.classifier_feedforward = classifier_feedforward
        self.prediction_layer = torch.nn.Linear(self.classifier_feedforward.get_output_dim()  , self.num_classes)

        self.label_accuracy = CategoricalAccuracy()
        self.label_f1_metrics = {}

        self.verbose_metrics = verbose_metrics

        for i in range(self.num_classes):
            self.label_f1_metrics[vocab.get_token_from_index(index=i, namespace="labels")] = F1Measure(positive_label=i)
        self.loss = torch.nn.CrossEntropyLoss()

        self.pool = lambda text, mask: util.get_final_encoder_states(text, mask, bidirectional=True)

        initializer(self) 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def __init__(self, vocab: Vocabulary,
                 text_field_embedder: TextFieldEmbedder,
                 encoder: Seq2SeqEncoder,
                 include_start_end_transitions: bool = True,
                 dropout: Optional[float] = None,
                 initializer: InitializerApplicator = InitializerApplicator(),
                 regularizer: Optional[RegularizerApplicator] = None) -> None:
        super().__init__(vocab, regularizer)

        self.label_namespace = 'labels'
        self.num_tags = self.vocab.get_vocab_size(self.label_namespace)

        # encode text
        self.text_field_embedder = text_field_embedder
        self.encoder = encoder
        self.dropout = torch.nn.Dropout(dropout) if dropout else None

        # crf
        output_dim = self.encoder.get_output_dim()
        self.tag_projection_layer = TimeDistributed(Linear(output_dim, self.num_tags))
        self.crf = ConditionalRandomField(self.num_tags, constraints=None, include_start_end_transitions=include_start_end_transitions)

        self.metrics = {
            "accuracy": CategoricalAccuracy(),
            "accuracy3": CategoricalAccuracy(top_k=3)
        }
        for index, label in self.vocab.get_index_to_token_vocabulary(self.label_namespace).items():
            self.metrics['F1_' + label] = F1Measure(positive_label=index)

        initializer(self) 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def test_f1_measure_catches_exceptions(self, device: str):
        f1_measure = F1Measure(0)
        predictions = torch.rand([5, 7], device=device)
        out_of_range_labels = torch.tensor([10, 3, 4, 0, 1], device=device)
        with pytest.raises(ConfigurationError):
            f1_measure(predictions, out_of_range_labels) 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def test_f1_measure_other_positive_label(self, device: str):
        f1_measure = F1Measure(positive_label=1)
        predictions = torch.tensor(
            [
                [0.35, 0.25, 0.1, 0.1, 0.2],
                [0.1, 0.6, 0.1, 0.2, 0.0],
                [0.1, 0.6, 0.1, 0.2, 0.0],
                [0.1, 0.5, 0.1, 0.2, 0.0],
                [0.1, 0.2, 0.1, 0.7, 0.0],
                [0.1, 0.6, 0.1, 0.2, 0.0],
            ],
            device=device,
        )
        # [True Negative, False Positive, True Positive,
        #  False Positive, True Negative, False Positive]
        targets = torch.tensor([0, 4, 1, 0, 3, 0], device=device)
        f1_measure(predictions, targets)
        precision, recall, f1 = f1_measure.get_metric()
        assert f1_measure._true_positives == 1.0
        assert f1_measure._true_negatives == 2.0
        assert f1_measure._false_positives == 3.0
        assert f1_measure._false_negatives == 0.0
        f1_measure.reset()
        # check value
        assert_allclose(precision, 0.25)
        assert_allclose(recall, 1.0)
        assert_allclose(f1, 0.4)
        # check type
        assert isinstance(precision, float)
        assert isinstance(recall, float)
        assert isinstance(f1, float) 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def test_f1_measure_accumulates_and_resets_correctly(self, device: str):
        f1_measure = F1Measure(positive_label=0)
        predictions = torch.tensor(
            [
                [0.35, 0.25, 0.1, 0.1, 0.2],
                [0.1, 0.6, 0.1, 0.2, 0.0],
                [0.1, 0.6, 0.1, 0.2, 0.0],
                [0.1, 0.5, 0.1, 0.2, 0.0],
                [0.1, 0.2, 0.1, 0.7, 0.0],
                [0.1, 0.6, 0.1, 0.2, 0.0],
            ],
            device=device,
        )
        # [True Positive, True Negative, True Negative,
        #  False Negative, True Negative, False Negative]
        targets = torch.tensor([0, 4, 1, 0, 3, 0], device=device)
        f1_measure(predictions, targets)
        f1_measure(predictions, targets)
        precision, recall, f1 = f1_measure.get_metric()
        assert f1_measure._true_positives == 2.0
        assert f1_measure._true_negatives == 6.0
        assert f1_measure._false_positives == 0.0
        assert f1_measure._false_negatives == 4.0
        f1_measure.reset()
        assert_allclose(precision, 1.0)
        assert_allclose(recall, 0.333333333)
        assert_allclose(f1, 0.499999999)
        assert f1_measure._true_positives == 0.0
        assert f1_measure._true_negatives == 0.0
        assert f1_measure._false_positives == 0.0
        assert f1_measure._false_negatives == 0.0 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def test_f1_measure_works_for_sequences(self, device: str):
        f1_measure = F1Measure(positive_label=0)
        predictions = torch.tensor(
            [
                [[0.35, 0.25, 0.1, 0.1, 0.2], [0.1, 0.6, 0.1, 0.2, 0.0], [0.1, 0.6, 0.1, 0.2, 0.0]],
                [[0.35, 0.25, 0.1, 0.1, 0.2], [0.1, 0.6, 0.1, 0.2, 0.0], [0.1, 0.6, 0.1, 0.2, 0.0]],
            ],
            device=device,
        )
        # [[True Positive, True Negative, True Negative],
        #  [True Positive, True Negative, False Negative]]
        targets = torch.tensor([[0, 3, 4], [0, 1, 0]], device=device)
        f1_measure(predictions, targets)
        precision, recall, f1 = f1_measure.get_metric()
        assert f1_measure._true_positives == 2.0
        assert f1_measure._true_negatives == 3.0
        assert f1_measure._false_positives == 0.0
        assert f1_measure._false_negatives == 1.0
        f1_measure.reset()
        assert_allclose(precision, 1.0)
        assert_allclose(recall, 0.666666666)
        assert_allclose(f1, 0.8)

        # Test the same thing with a mask:
        mask = torch.tensor([[False, True, False], [True, True, True]], device=device)
        f1_measure(predictions, targets, mask)
        precision, recall, f1 = f1_measure.get_metric()
        assert f1_measure._true_positives == 1.0
        assert f1_measure._true_negatives == 2.0
        assert f1_measure._false_positives == 0.0
        assert f1_measure._false_negatives == 1.0
        assert_allclose(precision, 1.0)
        assert_allclose(recall, 0.5)
        assert_allclose(f1, 0.66666666666) 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def test_f1_measure_catches_exceptions(self):
        f1_measure = F1Measure(0)
        predictions = torch.rand([5, 7])
        out_of_range_labels = torch.Tensor([10, 3, 4, 0, 1])
        with pytest.raises(ConfigurationError):
            f1_measure(predictions, out_of_range_labels) 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def test_f1_measure(self):
        f1_measure = F1Measure(positive_label=0)
        predictions = torch.Tensor([[0.35, 0.25, 0.1, 0.1, 0.2],
                                    [0.1, 0.6, 0.1, 0.2, 0.0],
                                    [0.1, 0.6, 0.1, 0.2, 0.0],
                                    [0.1, 0.5, 0.1, 0.2, 0.0],
                                    [0.1, 0.2, 0.1, 0.7, 0.0],
                                    [0.1, 0.6, 0.1, 0.2, 0.0]])
        # [True Positive, True Negative, True Negative,
        #  False Negative, True Negative, False Negative]
        targets = torch.Tensor([0, 4, 1, 0, 3, 0])
        f1_measure(predictions, targets)
        precision, recall, f1 = f1_measure.get_metric()
        assert f1_measure._true_positives == 1.0
        assert f1_measure._true_negatives == 3.
        assert f1_measure._false_positives == 0.0
        assert f1_measure._false_negatives == 2.0
        f1_measure.reset()
        numpy.testing.assert_almost_equal(precision, 1.0)
        numpy.testing.assert_almost_equal(recall, 0.333333333)
        numpy.testing.assert_almost_equal(f1, 0.499999999)

        # Test the same thing with a mask:
        mask = torch.Tensor([1, 0, 1, 1, 1, 0])
        f1_measure(predictions, targets, mask)
        precision, recall, f1 = f1_measure.get_metric()
        assert f1_measure._true_positives == 1.0
        assert f1_measure._true_negatives == 2.0
        assert f1_measure._false_positives == 0.0
        assert f1_measure._false_negatives == 1.0
        f1_measure.reset()
        numpy.testing.assert_almost_equal(precision, 1.0)
        numpy.testing.assert_almost_equal(recall, 0.5)
        numpy.testing.assert_almost_equal(f1, 0.6666666666) 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def test_f1_measure_accumulates_and_resets_correctly(self):
        f1_measure = F1Measure(positive_label=0)
        predictions = torch.Tensor([[0.35, 0.25, 0.1, 0.1, 0.2],
                                    [0.1, 0.6, 0.1, 0.2, 0.0],
                                    [0.1, 0.6, 0.1, 0.2, 0.0],
                                    [0.1, 0.5, 0.1, 0.2, 0.0],
                                    [0.1, 0.2, 0.1, 0.7, 0.0],
                                    [0.1, 0.6, 0.1, 0.2, 0.0]])
        # [True Positive, True Negative, True Negative,
        #  False Negative, True Negative, False Negative]
        targets = torch.Tensor([0, 4, 1, 0, 3, 0])
        f1_measure(predictions, targets)
        f1_measure(predictions, targets)
        precision, recall, f1 = f1_measure.get_metric()
        assert f1_measure._true_positives == 2.0
        assert f1_measure._true_negatives == 6.0
        assert f1_measure._false_positives == 0.0
        assert f1_measure._false_negatives == 4.0
        f1_measure.reset()
        numpy.testing.assert_almost_equal(precision, 1.0)
        numpy.testing.assert_almost_equal(recall, 0.333333333)
        numpy.testing.assert_almost_equal(f1, 0.499999999)
        assert f1_measure._true_positives == 0.0
        assert f1_measure._true_negatives == 0.0
        assert f1_measure._false_positives == 0.0
        assert f1_measure._false_negatives == 0.0 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def test_f1_measure_works_for_sequences(self):
        f1_measure = F1Measure(positive_label=0)
        predictions = torch.Tensor([[[0.35, 0.25, 0.1, 0.1, 0.2],
                                     [0.1, 0.6, 0.1, 0.2, 0.0],
                                     [0.1, 0.6, 0.1, 0.2, 0.0]],
                                    [[0.35, 0.25, 0.1, 0.1, 0.2],
                                     [0.1, 0.6, 0.1, 0.2, 0.0],
                                     [0.1, 0.6, 0.1, 0.2, 0.0]]])
        # [[True Positive, True Negative, True Negative],
        #  [True Positive, True Negative, False Negative]]
        targets = torch.Tensor([[0, 3, 4],
                                [0, 1, 0]])
        f1_measure(predictions, targets)
        precision, recall, f1 = f1_measure.get_metric()
        assert f1_measure._true_positives == 2.0
        assert f1_measure._true_negatives == 3.0
        assert f1_measure._false_positives == 0.0
        assert f1_measure._false_negatives == 1.0
        f1_measure.reset()
        numpy.testing.assert_almost_equal(precision, 1.0)
        numpy.testing.assert_almost_equal(recall, 0.666666666)
        numpy.testing.assert_almost_equal(f1, 0.8)

        # Test the same thing with a mask:
        mask = torch.Tensor([[0, 1, 0],
                             [1, 1, 1]])
        f1_measure(predictions, targets, mask)
        precision, recall, f1 = f1_measure.get_metric()
        assert f1_measure._true_positives == 1.0
        assert f1_measure._true_negatives == 2.0
        assert f1_measure._false_positives == 0.0
        assert f1_measure._false_negatives == 1.0
        numpy.testing.assert_almost_equal(precision, 1.0)
        numpy.testing.assert_almost_equal(recall, 0.5)
        numpy.testing.assert_almost_equal(f1, 0.66666666666) 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def __init__(self, vocab: Vocabulary,
                 text_field_embedder: TextFieldEmbedder,
                 seq2seq_encoder: Seq2SeqEncoder,
                 initializer: InitializerApplicator) -> None:
        super(ProLocalModel, self).__init__(vocab)

        self.text_field_embedder = text_field_embedder
        self.seq2seq_encoder = seq2seq_encoder

        self.attention_layer = \
            Attention(similarity_function=BilinearSimilarity(2 * seq2seq_encoder.get_output_dim(),
                                                             seq2seq_encoder.get_output_dim()), normalize=True)

        self.num_types = self.vocab.get_vocab_size("state_change_type_labels")
        self.aggregate_feedforward = Linear(seq2seq_encoder.get_output_dim(),
                                            self.num_types)

        self.span_metric = SpanBasedF1Measure(vocab,
                                              tag_namespace="state_change_tags")  # by default "O" is ignored in metric computation
        self.num_tags = self.vocab.get_vocab_size("state_change_tags")

        self.tag_projection_layer = TimeDistributed(Linear(self.seq2seq_encoder.get_output_dim() + 2
                                                           , self.num_tags))
        self._type_accuracy = CategoricalAccuracy()

        self.type_f1_metrics = {}
        self.type_labels_vocab = self.vocab.get_index_to_token_vocabulary("state_change_type_labels")
        for type_label in self.type_labels_vocab.values():
            self.type_f1_metrics["type_" + type_label] = F1Measure(self.vocab.get_token_index(type_label, "state_change_type_labels"))

        self._loss = torch.nn.CrossEntropyLoss()

        initializer(self) 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def __init__(self, vocab: Vocabulary,
                 text_field_embedder: TextFieldEmbedder,
                 encoder: Seq2SeqEncoder,
                 projection_feedforward: FeedForward,
                 inference_encoder: Seq2SeqEncoder,
                 output_feedforward: FeedForward,
                 output_logit: FeedForward,
                 final_feedforward: FeedForward,
                 coverage_loss: CoverageLoss,
                 similarity_function: SimilarityFunction = DotProductSimilarity(),
                 dropout: float = 0.5,
                 contextualize_pair_comparators: bool = False,
                 pair_context_encoder: Seq2SeqEncoder = None,
                 pair_feedforward: FeedForward = None,
                 initializer: InitializerApplicator = InitializerApplicator(),
                 regularizer: Optional[RegularizerApplicator] = None) -> None:
        super().__init__(vocab=vocab,
                         text_field_embedder=text_field_embedder,
                         encoder=encoder,
                         similarity_function=similarity_function,
                         projection_feedforward=projection_feedforward,
                         inference_encoder=inference_encoder,
                         output_feedforward=output_feedforward,
                         output_logit=output_logit,
                         final_feedforward=final_feedforward,
                         coverage_loss=coverage_loss,
                         contextualize_pair_comparators=contextualize_pair_comparators,
                         pair_context_encoder=pair_context_encoder,
                         pair_feedforward=pair_feedforward,
                         dropout=dropout,
                         initializer=initializer,
                         regularizer=regularizer)
        self._ignore_index = -1
        self._answer_loss = torch.nn.CrossEntropyLoss(ignore_index=self._ignore_index)
        self._coverage_loss = coverage_loss

        self._accuracy = CategoricalAccuracy()
        self._entailment_f1 = F1Measure(self._label2idx["entailment"]) 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def test_f1_measure(self, device: str):
        f1_measure = F1Measure(positive_label=0)
        predictions = torch.tensor(
            [
                [0.35, 0.25, 0.1, 0.1, 0.2],
                [0.1, 0.6, 0.1, 0.2, 0.0],
                [0.1, 0.6, 0.1, 0.2, 0.0],
                [0.1, 0.5, 0.1, 0.2, 0.0],
                [0.1, 0.2, 0.1, 0.7, 0.0],
                [0.1, 0.6, 0.1, 0.2, 0.0],
            ],
            device=device,
        )
        # [True Positive, True Negative, True Negative,
        #  False Negative, True Negative, False Negative]
        targets = torch.tensor([0, 4, 1, 0, 3, 0], device=device)
        f1_measure(predictions, targets)
        precision, recall, f1 = f1_measure.get_metric()
        assert f1_measure._true_positives == 1.0
        assert f1_measure._true_negatives == 3.0
        assert f1_measure._false_positives == 0.0
        assert f1_measure._false_negatives == 2.0
        f1_measure.reset()
        # check value
        assert_allclose(precision, 1.0)
        assert_allclose(recall, 0.333333333)
        assert_allclose(f1, 0.499999999)
        # check type
        assert isinstance(precision, float)
        assert isinstance(recall, float)
        assert isinstance(f1, float)

        # Test the same thing with a mask:
        mask = torch.tensor([True, False, True, True, True, False], device=device)
        f1_measure(predictions, targets, mask)
        precision, recall, f1 = f1_measure.get_metric()
        assert f1_measure._true_positives == 1.0
        assert f1_measure._true_negatives == 2.0
        assert f1_measure._false_positives == 0.0
        assert f1_measure._false_negatives == 1.0
        f1_measure.reset()
        assert_allclose(precision, 1.0)
        assert_allclose(recall, 0.5)
        assert_allclose(f1, 0.6666666666) 

# 需要导入模块: from allennlp.training import metrics [as 别名]
# 或者: from allennlp.training.metrics import F1Measure [as 别名]
def get_metrics(self, reset: bool = False):
        metrics = {}
        avg_metric = None
        for metric in self.metrics:
            if isinstance(metric, CategoricalAccuracy):
                metrics['accuracy'] = metric.get_metric(reset)
                m = metrics['accuracy']
            elif isinstance(metric, F1Measure):
                metrics['f1'] = metric.get_metric(reset)[-1]
                m = metrics['f1']
            elif isinstance(metric, FBetaMeasure):
                metrics['f1'] = metric.get_metric(reset)['fscore']
                m = metrics['f1']
            elif isinstance(metric, FastMatthews) or isinstance(metric, Correlation):
                metrics[f'correlation_{metric.corr_type}'] = metric.get_metric(reset)
                m = metrics[f'correlation_{metric.corr_type}']
            elif isinstance(metric, SemEval2010Task8Metric):
                metrics['f1'] = metric.get_metric(reset)
                m = metrics['f1']
            elif isinstance(metric, MicroF1):
                precision, recall, f1 = metric.get_metric(reset)
                metrics['micro_prec'] = precision
                metrics['micro_rec'] = recall
                metrics['micro_f1'] = f1
                m = metrics['micro_f1']
            elif isinstance(metric, F1Metric):
                precision, recall, f1 = metric.get_metric(reset)
                metrics['precision'] = precision
                metrics['recall'] = recall
                metrics['f1'] = f1
                m = metrics['f1']
            else:
                raise ValueError

            if avg_metric is None:
                avg_metric = [m, 1.0]
            else:
                avg_metric[0] += m
                avg_metric[1] += 1
        metrics = {k: float(v) for k, v in metrics.items()}
        if avg_metric is not None:
            metrics["avg_metric"] = avg_metric[0] / avg_metric[1]
        return metrics