为什么需要非线性？ 想象一下，如果网络里每一层都是线性的（比如 y=Wx+b），无论堆叠多少层，最终网络都只是一条线性映射。深度堆叠就没有意义了，网络的表达能力非常有限。
Get the Pokemon TCG: Mega Evolution Phantasmal Flames Booster Bundle for the best price at Walmart — save vs. Amazon and TCGplayer
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Another major event in the awards season circuit is upon us: the Screen Actors Guild Awards. The SAG Awards — now simply called The Actor Awards in 2026 — exclusively honor outstanding acting performances in movies and television from the previous calendar year. They also can give us some insight into what to expect at the Oscars.
For the last four years, archaeologists have been excavating the site in the grounds of Fonmon Castle, close to the end of the runway at Cardiff airport.