1. multi-class, multi-label, multi-task classfication区别
每个标签有几个可能取值 | ||
几个标签 | 2 | >2 |
1 | binary classification | multi-class classification |
>1 | multi-label classification | multi-task classification |
2. 例子
binary classification: 是不是食物 | 是食物: (1) |
multi-class classification: 是食物?日用品?书本? | 是书本: (2) 或 (one hot: 0, 0, 1) |
multi-label classification: 是食物?塑料包装?甜的? | 是无包装的甜食: (1, 0, 1) |
multi-task classification: 是食物?塑料包装?出厂日期? | 是有包装的3月出厂的甜食: (1, 1, 2) |