What is self-attention?

Self-attention is like having a group of friends who all help each other understand what’s going on in a story.

Imagine you're reading a story about a team of superheroes. Each hero has their own job, but they all work together to save the day. Now, imagine each hero can look at the other heroes and figure out how their actions relate to theirs, like a detective solving a puzzle by seeing who did what and why.

In self-attention, every part of the story (or sentence) is like one of these heroes. Each part looks at all the others and decides how important they are in understanding the whole story.

For example, if you're reading "The cat sat on the mat," each word can see the other words and figure out their roles, like the cat is the main hero, and the mat is where everything happens.

This helps computers understand sentences better because they can focus on what's important. Just like how your brain knows that "the" isn’t as important as "cat" or "sat," self-attention lets computers pick out the key parts of a sentence, making them smarter at reading and understanding language!