参考自：
    1、Fairness-aware Agnostic Federated Learning
    2、Handling Conditional Discrimination
        https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6137304
原文描述：
    Dutch dataset collects personal information of the inhabitants in Netherlands
    and the task is to classify the individual into high income or low income.

预测目标：
    Using occupation as the class label ('5_4_9': 1, '2_1':0)
敏感属性：
    “gender” as the sensitive attribute (2->Male:0, 1->Female:1)

