nn.Sequential สำหรับโมเดลอย่างรวดเร็ว

When data flows straight through layers in order, nn.Sequential lets you skip writing a full custom class.

You pass the layers as arguments, and Sequential runs them one after another. The order you list them is the order they execute.

Activations are modules as well, so drop nn.ReLU() right between your linear layers in the list.

A Sequential model is still an nn.Module, so you run it with model(x) exactly like a custom class.

Sequential supplies the forward pass for you, feeding the output of each layer into the next automatically.

It shines when there are no branches or skips, just a clean chain from input to output.

Pass an OrderedDict to give each layer a readable name, which makes printing the model much clearer.

You can reach any layer by position, since Sequential acts like a list. This helps you inspect or tweak one part.

Need an if-branch, a skip connection, or reused layers? Then go back to a custom nn.Module instead.

You can even put a Sequential inside another to group related layers into a tidy block.

For straightforward models, Sequential is shorter and easier to scan. Less code means fewer bugs. ✨

Think about the kind of model that fits nn.Sequential best.

Use nn.Sequential to chain layers in order without writing forward. Reach for a custom class only when you need branches or skips. 🎯