逻辑回归算法原理和推导https://blog.csdn.net/kun_csdn/article/details/88876524
优缺点 http://mini.eastday.com/bdmip/190222014114424.html#
https://blog.csdn.net/hzqgangtiexia/article/details/80444490
https://www.cnblogs.com/ModifyRong/p/7739955.html
https://www.cnblogs.com/webRobot/p/11781078.html调参