Wirebook › Glossary › Recommendation system
What is a recommendation system?
In one sentence: A program that scores lots of things (videos, songs, products) for each person and shows the top few, based on what they and similar people did.
A little more
A recommendation system gives every video, song or product a score for one person and shows the highest-scoring few. The score comes from clues: what you watched to the end, skipped, liked or searched for, plus what people with similar habits enjoyed (called collaborative filtering).
It can't read minds or hear conversations; it only sees what you do in the app. Clearing or pausing your history, or saying "not interested", changes what it suggests.
It's a bit like… A shopkeeper who remembers what you bought last time and what other customers who bought the same thing came back for.