Which machine learning technique is primarily used by Spotify's 'Discover Weekly' feature to personalize music recommendations?

The music industry has been transformed by digital streaming platforms, changing how artists release music and how fans discover new sounds. These platforms use sophisticated recommendation algorithms and have revolutionized music retail. Test your knowledge about the technology powering today's music marketplace!

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Collaborative filtering that analyzes listening patterns across users with similar tastes
Simple genre matching based only on previously played songs
Random forest algorithms that prioritize only the most popular trending songs
Manual curation by Spotify staff who select songs for each individual user