exp.py 文件源码

python
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项目:scienceie17 作者: OC-ScienceIE 项目源码 文件源码
def run_exp_train_cv(crf, feat_dirs, target_label, n_folds=5, n_jobs=-1):
    """
    Run cross-validated experiment on training data
    """
    # Collect data for running CRF classifier
    train_dir = join(LOCAL_DIR, 'train')
    true_iob_dir = join(train_dir, 'iob')
    X = collect_features(true_iob_dir, *feat_dirs)
    labels_fname = join(train_dir, 'train_labels.pkl')
    labels = read_labels(labels_fname)
    y_true = labels[target_label]
    folds_fname = join(train_dir, 'folds.pkl')
    folds = read_folds(folds_fname, n_folds)

    # Predict]
    y_pred = cross_val_predict(crf, X, y_true, cv=folds, verbose=2, n_jobs=n_jobs)
    print(flat_classification_report(y_true, y_pred, digits=3, labels=('B', 'I')))
    return y_pred
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