PAC学习框架提供了一种形式化的方法来量化概念类的可学习性。
The PAC learning framework provides a formal way to quantify the learnability of a concept class.
"We are all in the gutter, but some of us are looking at the stars."
无论你走多远，你都无法逃离自己。
The stage is a magical place where anything can happen.
我们要不断学习，才能跟上时代的步伐。