The two-stage candidate-generation/ranking funnel, the three relevance strategies, the cold-start fixes, and the watch-time-not-clicks metric to specify before you build — on a single sheet.
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The handbook · 7 volumes
Fora Soft Video Engineering Handbook
This recommendation system build checklist covers the candidate-generation and ranking funnel, three relevance strategies, cold-start fixes and the watch-time metric to fix before you build. We wrote seven volumes on the video stack; start with Volume 6 for the AI feature lifecycle and model choices, then Volume 7 for serving and cost and Volume 3 for QoE. Written by Nikolay Sapunov, CEO at Fora Soft.
Building recommendations for your streaming service and unsure what to measure?
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