January 2023
Intermediate to advanced
288 pages
6h 6m
Chinese
Content preview from 移动端AI与ML应用开发：基于iOS和Android
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26
|
第
2
章
图
2-10
：
Fashion MNIST
数据集中的图像特写
与任何图像一样，它也是一个矩形的像素网格。在这种情况下，网格大小为 28×28，并
且每个像素都是一个介于 0 ～ 255 之间的值，如前所述。
2.1.3
解析
Fashion MNIST
的模型架构
现在让我们看看如何将这些像素值与之前看到的计算机视觉架构一起使用。
你可以在图 2-11 中看到这个的表示。请注意，Fashion MNIST 中有 10 个时尚类，因此
我们需要一个包含 10 个神经元的输出层。请注意，为了更容易适应页面，我旋转了架
构，使 10 个神经元的输出层位于底部，而不是右侧。
上面神经元的数量，当前设置为 20 以适应页面，可能会随着你编写代码而改变。但我
们的想法是把图像的像素输入这些神经元。
图
2-11
：一种识别时尚图像的神经网络架构
正文.indd 26正文.indd 26 2023-4-30 9:07:422023-4-30 9:07:42
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