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The PAC learning framework provides a formal way to quantify the learnability of a concept class.
The world is not a problem to be solved; it is a living being to which we belong.
孤独是人类的常态。培养它。它如何深入你,让你的灵魂有空间成长。
You can be the ripest, juiciest peach in the world, and there's still going to be somebody who hates peaches.