Retrieval and ranking
Music recommendations
- Serve the popular list
- Two-tower retrieval
- Rank the candidates
- Fresh listens
- Give new tracks a chance
- Final test
Recommend tracks on a home screen for millions of listeners. Start with a popular list, then retrieve candidates with a two-tower model, rank them, keep listening features fresh, and give new tracks a chance to be heard.
Final testRelease day: recommendation requests x1.4 for 12 h on day 20 of a 30-day run, as 1 million new tracks arrive. Your final board runs once more with a new traffic seed.
Stage 5 of 5 · 8 parts given · 14,000 requests/s
Progress on this page stays on this device.