神经网络简介(翻译)
2017-12-11 本文已影响26人
三猫后端
原文链接:神经网络简介(翻译)
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![](https://img.haomeiwen.com/i7870737/2986649a16c2baba.png)
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看起来很熟悉?这是我们的老朋友,逻辑回归。将这个模型解释为具有S型“激活函数”的线性感知器,会很好的帮助我们解释概括这个模型。而且,由于我们现在将y解释为概率,我们必须相应地更新我们的决策规则。
![](https://img.haomeiwen.com/i7870737/64f715b57efde670.png)
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或者,
![](https://img.haomeiwen.com/i7870737/fd24421158eb46e4.png)
![](https://img.haomeiwen.com/i7870737/933cb6d2e9e75997.png)
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![](https://img.haomeiwen.com/i7870737/a75a64f8b0edff43.png)
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