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pytext multi-label support (#729) #731
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Summary: Pull Request resolved: facebookresearch#729 Add multi-label support to Pytext training workflow including * LabelListTensorizer to read label list * MultiLabelSoftMarginLoss with n_hot_encoding encoding to calculate the loss of multi-label task (need to take care of the padded -1 in n_hot_encoding) * MultiLabelOutputLayer with predictions of all potential labels for each example * LabelListPrediction(NamedTuple) for an example including * label_scores: List[float] * predicted_label: List[int] * expected_label: List[int] * MultiLabelClassificationMetricReporter * compute_multi_label_classification_metrics with both predicted and expected labels in lists * compute_multi_label_soft_metrics with both predicted and expected labels in lists * handle the label / label list inputs at the same time in channel.py * In input arguments, users are able to choose * LabelTensorizer / LabelListTensorizer * BinaryClassificationOutputLayer/ MultiLabelOutputLayer / MulticlassOutputLayer * loss including BinaryCrossEntropyLoss, MultiLabelSoftMarginLoss, etc. * associated with loss, user can choose ClassificationMetricReporter / MultiLabelClassificationMetricReporter * define@register_adapter(from_version=12) v11_to_v12 in config_adapter.py to make ClassificationMetricReporter expansible * keep RECALL_AT_PRECISION_THREHOLDS as it was, users can change the values to test their data set (for example, add 0.7 into the list of thresholds) It has been tested on single-label and multi-label examples for DocNN and BERT models Differential Revision: D15777482 fbshipit-source-id: 7eff3b27eff076d6c36a0feaef223573608b0d5d
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Summary:
Pull Request resolved: #729
Add multi-label support to Pytext training workflow including
LabelListTensorizer to read label list
MultiLabelSoftMarginLoss with n_hot_encoding encoding to calculate the loss of multi-label task
(need to take care of the padded -1 in n_hot_encoding)
MultiLabelOutputLayer with predictions of all potential labels for each example
LabelListPrediction(NamedTuple) for an example including
MultiLabelClassificationMetricReporter
handle the label / label list inputs at the same time in channel.py
In input arguments, users are able to choose
define@register_adapter(from_version=12) v11_to_v12 in config_adapter.py to make ClassificationMetricReporter expansible
keep RECALL_AT_PRECISION_THREHOLDS as it was, users can change the values to test their data set (for example, add 0.7 into the list of thresholds)
It has been tested on single-label and multi-label examples for DocNN and BERT models
Differential Revision: D15777482