def re_sampling(sel, feature, label):
    """
        Used to over-sampling unbalanced data
        """
    from imblearn.over_sampling import RandomOverSampler
    ros = RandomOverSampler(random_state=0)
    feature_resampled, label_resampled = ros.fit_resample(feature, label)
    from collections import Counter
    print(sorted(Counter(label_resampled).items()))
    return feature_resampled, label_resampled
