一个用featuretools做特征工程的例子，ft这个工具还不错，上次做Kaggle也有用到，如果是不太熟悉的领域，又是categorical data，先ft提一波高阶组合特征，跑一个baseline还是不错的。
不过这个工具有相当多tricky的参数，时间开销也比较大。
link：https://medium.com/@rrfd/simple-automatic-feature-engineering-using-featuretools-in-python-for-classification-b1308040e183
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