Non-Local Block
Non-Local Block
A **Non-Local Block** is an image block module used in neural networks that wraps a [non-local operation](https://paperswithcode.com/method/non-local-operation). We can define a non-local block as:

$$ \mathbb{z}\_{i} = W\_{z}\mathbb{y\_{i}} + \mathbb{x}\_{i} $$

where $y\_{i}$ is the output from the non-local operation and $+ \mathbb{x}\_{i}$ is a [residual connection](https://paperswithcode.com/method/residual-connection).
Non-local Neural Networks
https://paperswithcode.com/paper/non-local-neural-networks
Non-local Neural Networks