- Weekly curated playlist of 30 songs
- Automatically generated and delivered to all Spotify users
- Free and incredibly popular
- "Machine learning is the idea that there are generic algorithms that can tell you something interesting about a set of data without you having to write any custom code specific to the problem. Instead of writing code, you feed data to the generic algorithm and it builds its own logic based on the data." - Machine Learning is Fun
- Echo Nest (acquired by Spotify in 2014) to determine genres
- Algorithms to analyze audio signal developed by Spotify intern
- Individual taste profile is generated via use of Spotify
- Comparison of playlists across the platform
- Unheard and/or new songs are added to Discover Weekly playlist
- No human interference
- Other users' playlists, weighted based on popularity
- Your own taste profile, grouped by artists and genres
- Outliers are accounted for and weighted appropriately
- Collaborative filtering and natural language processing
- Collaborative filtering influences analysis of audio signal