machine learning

what is mechine learing?

looking for function

regression:The function outputs a scalar
classification:Given options(calsses),the function outputs the correct one.

1.regression：藉由過去參數去預測未來
2.Classfication：選擇題，讓Ai去做選擇

structured leaning

1.function with Unknown Parameters

model，带有unknown parameter的function
weight and bias

2.Dedine Loss from Training Data
label

误差计算方式不同，可选的

3.optimization
Gradient Descent

hyperparameters,自定义参数
global minima
local minima