使用测试集回测结果作为sota因子或者模型迭代的依据，是否存在数据泄露或者过拟合问题呢？

## ❓ Questions and Help

We sincerely suggest you to carefully read the [documentation](http://rdagent.readthedocs.io/). After that, if you still feel puzzled, please describe the question clearly under this issue.

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