Epochs Vs Pass Vs Iteration

Question

What does the term epochs mean in the neural network. How does it differ from pass and iteration

Answer 1

There are many neural networks algorithms in unsupervised learning. As long as a cost function can be defined, so can "neural networks" be used.

For instance, there are for instance autoencoders, for dimensionality reduction, or Generative Adversarial Networks (so 2 networks, one generating new samples). All these are unsupervised learning, and still using neural networks.