试用软件

How is the number of weights in the first layer of fitcnet determined?

1 次查看（过去 30 天）

显示更早的评论

Martin Haenggi 2023-11-2

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2042041-how-is-the-number-of-weights-in-the-first-layer-of-fitcnet-determined

回答： Taylor 2023-11-2

采纳的回答： Taylor

I was looking at the ionosphere example in the fitcnet documentation. I can specify the number of neurons in the fully connected layers, say 25 and 20, and LayerWeights{2} yields 20x25, which makes sense. However, LayerWeights{1} is 25x34, and I have no idea where the 34 comes from. The second dimensions stays 34 even when the middle layers are changed. So why 34?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Taylor 2023-11-2

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2042041-how-is-the-number-of-weights-in-the-first-layer-of-fitcnet-determined#answer_1345481

The matrix "X" in the ionosphere dataset contains 34 features. Your input layer must always have the same number of columns as features in your data.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

更多回答（0 个）

请先登录，再回答此问题。

类别

AI, Data Science, and Statistics Deep Learning Toolbox Sequence and Numeric Feature Data Workflows

在 Help Center 和 File Exchange 中查找有关 Sequence and Numeric Feature Data Workflows 的更多信息

标签

产品

MATLAB

版本

R2023b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Translated by

试用软件