The PAC learning framework provides a formal way to quantify the learnability of a concept class.
无径之林,常有情趣
我们观察到的宇宙恰好具有我们所期望的特性,如果从根本上说,没有设计,没有目的,没有邪恶也没有善良,只有盲目的、无情的冷漠。
The mind evolves to meet the demands of existence.
Nature never deceives us; it is always we who deceive ourselves.
The only limits in life are the ones you set for yourself.
出门没有衣服,进家没有粮食,内心积有耻辱之感,就会一起来发动暴乱,而且无法禁止。小槛黄花共醉