Collaborative filtering is a popular technique used in machine learning for recommendation systems. It works by collecting preferences or taste information from many users and using it to recommend items to other users.
Key Points
- Personalization: Collaborative filtering can provide personalized recommendations by analyzing the behavior and preferences of similar users.
- Item-to-Item: This method recommends items based on the similarity between items, not on user preferences.
- User-to-User: This method recommends items based on the similarity between users' preferences.
Example
Suppose you have a user who loves movies like "The Matrix" and "Inception". Collaborative filtering can suggest other movies that these movies have in common, such as "The Dark Knight" and "Interstellar".
Related Content
To learn more about machine learning and recommendation systems, check out our Machine Learning Basics section.
Collaborative Filtering Diagram