Glossary · Phase 4 · Deep learning
XOR
"Exclusive or": yes when exactly one of two things is true, but not both. One neuron can't learn it; two layers can.
Learn it properly
The artificial neuron · Weighted sum plus a nonlinearity. About 25 minutes.
Other terms from the same lesson
- hyperplane: A flat dividing surface in any number of dimensions: a line in 2D, a flat sheet in 3D, and so on.
- linearly separable: When one straight line (or flat surface) can split the yes examples from the no examples. A single neuron can only learn these.
- neuron: One unit in a neural network: a weighted sum of its inputs, then a simple function.