Toolsperceptron

One Neuron, One Straight Line

A perceptron is the simplest neural network: a single neuron that splits the world with one straight line. Drop some dots, press Train, and watch it nudge the line each time it gets a dot wrong.

~/tools/perceptron

1 · click to drop dots–

2 · controls

Adding:

Try:

Learning rate (how big each nudge is)0.30

Updates: 0
Dots on the wrong side: 0
Accuracy: –

The rule: for a dot on the wrong side, add rate × label × position to the weights. If one straight line can separate the colours, this always gets there eventually. XOR can't be split by one line, so it never settles; that limit is why networks stack many neurons.