Neural Network Lab

Neural networks

Build a small network, press Play, and watch it learn to separate two classes.

Guided experiments

Pick one to load it, then press Play.

Epoch0

Train loss–

Test loss–

Test accuracy–

Hover the plot to see what the network predicts.

Class A (orange) Class B (blue) Training point Test point

Data

Dataset

Points

Noise

Training share

Draw your own points

Input features

Extra features hand the network ready-made shapes.

Network

Activation

Training

Optimizer

Learning rate

L2 regularisation

Batch size

Speed (epochs per second)

Show test points

Line thickness shows weight size. Orange is positive, blue is negative.

TrainTest