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How Netflix, Spotify, TikTok Know You
Understand recommendation systems and how platforms predict what you'll love
6 concepts
55 min
1
Vectors: How AI Sees Things
Understand how AI converts everything—songs, movies, people—into lists of numbers to find patterns
9 min
2
Similarity: Finding Matches
Learn how AI calculates similarity between items to recommend things you'll probably like
10 min
3
Collaborative Filtering: What Similar Users Liked
Discover how platforms find people like you and recommend what they enjoyed
11 min
4
Content-Based Filtering: Item Features
Understand how platforms analyze what you like and find items with similar characteristics
10 min
5
Cold Start Problem: New Users & Items
Learn why platforms struggle with new users who have no history, and how they solve it
9 min
6
Hybrid Systems: Combining Approaches
Discover how Netflix, Spotify, and TikTok combine multiple techniques for better recommendations
12 min