# Understand Causal Padding in Convolutional Neural Networks – Deep Learning Tutorial

By | November 29, 2022

In convolution networks, there are “SAME” and “VALID” paddings. Here is the tutorial:

Understand the Difference Between ‘SAME’ and ‘VALID’ Padding in Convolution Networks

However, there also exists causal padding. In this tutorial, we will introduce what it is.

We can find: the convolutional output at time $$t$$ only depends on the previous time steps (less than $$t$$).

For example:

As to the yellow output 5. It depends on its previous blue time steps 1, 2, 3, 4