机器学习算法的最终测试是它在新的、未见过的数据上表现良好的能力。
Let me explain. I think it would be very unusual for anyone here, or anyone watching, to be envious of the Queen of England. Even though she is much richer than any of you are, and she's got a very large house, the reason why we don't envy her is because she's too weird.
在别人相信你之前,你必须成为自己最大的信徒。