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。
"Acting is not about being someone different. It's finding the similarity in what is apparently different, then finding myself in there."
世界上充满了故事,但最好的故事是我们亲身经历的。
The human body is a complex puzzle, and viruses are just one piece of it.