摘要：
A more complex model does not always lead to better performance on testing data. Because error due to both of 'bias' and 'variance'. From training dat 阅读全文
摘要：
Regression 回归 应用领域包括：Stock Market Forecast, Self driving car, Recommondation,... Step 1: Model 对于宝可梦的CP值预测问题，假设为一个最简单的线性模型 y = b + $\sum w_i x_i$ $x_i 阅读全文