2026-09-19 · America/Los_Angeles · 社区动态 · #5

I wanted to watch a neural network learn [P]

I wanted to really see how a neural network learns different functions, so built an interactive demo. You can change the architecture of the network and the function it will try to approximate. A fully-connected network with ReLU activations will create a piecewise linear function. For a network with a single layer, the maximum number of segments the network can create is 1 + the width of the layer. For instance, if you enter "3" into the hidden layers your network can have up to 4 segments. If you add another hidden layer afterwards, it multiplies the max number of segments. So "3 3"…

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