crf_task.py 文件源码

def classify(y_true, y_pred):

    lb = LabelBinarizer()
    y_true_combined = lb.fit_transform(list(chain.from_iterable(y_true)))
    y_pred_combined = lb.transform(list(chain.from_iterable(y_pred)))

    tagset = set(lb.classes_) - {'O'}
    tagset = sorted(tagset, key=lambda tag: tag.split('-', 1)[::-1])
    class_indices = {cls: idx for idx, cls in enumerate(lb.classes_)}

    return classification_report(
        y_true_combined,
        y_pred_combined,
        labels = [class_indices[cls] for cls in tagset],
        target_names = tagset,
    )