One neuron

Set the weights and bias of a single artificial neuron, watch it draw a straight decision line, then let it learn from examples.

NoviceExplained in The artificial neuron

One artificial neuron

Should you go for a bike ride? The neuron weighs warmth and rain, adds a bias, and squashes the total into a chance from 0% to 100%.

7.0Warmth3.0Rain× 0.60× 0.30Σsum 2.10bias −3.0squash89%

Rain risk

Warmth

0.60
0.30
−3.0
Chance today is a good ride89%
Past days on the correct side16 of 30
Loss1.063

Try this

  • Flip the sign of the weight on rain and watch the boundary swing.
  • Slide the bias and watch the boundary move without turning.
  • Press Learn from the examples, then reset and try to beat it by hand.

Try "embedding", "softmax", "overfitting", or "backpropagation".