Clustering

Classification

Prediction

Regression

No neuron updates

Random neuron updates

Only one neuron updates

All neurons update

Labeled data

Unlabeled data

Clean data

Structured data

Random layers

Few layers

Many layers

No layers

Per sample

After full dataset

Randomly

Never

One sample

One neuron

One weight update

One iteration over dataset

Random data

Labeled data

Unlabeled data

No data

Perceptron

Hebbian network

MLP

Linear model

Dataset size

Input only

Output only

Error

Reinforcement

Semi-supervised

Supervised

Unsupervised