Simple definition of recommendation algorithm
A recommendation algorithm is a set of rules or an AI system that guesses what you might want next, like videos, songs, products, or posts. It uses signals such as what you watched, liked, searched for, or what similar people enjoyed. For everyday users, recommendations shape what you see online and can help you discover new things. A downside is they can create a “bubble” by showing more of the same, and they can sometimes push extreme or misleading content because it gets attention.
How to explain recommendation algorithm to kids
It is a computer helper that tries to pick what you might like to see next. It watches what you click on and then suggests similar things. Sometimes it is helpful, but it can also keep showing you only one kind of stuff.
Here’s how to think about it
Imagine a librarian notices you keep checking out mystery books. Next time, they set aside a few new mysteries they think you will like. The librarian is acting like a recommendation algorithm. If the librarian only ever gives you mysteries, you might miss other great books.