{"id":"youtube-reciprocal-rank-fusion","text":"`get_feed` blends recommendation strategies using reciprocal rank fusion: each strategy contributes `weight * 1/(rank+1)` to a video's score, with default weights favoring collaborative (0.5) over popular (0.3) over content-based (0.2).","truth_value":"IN","source":"entries/2026/06/05/design-youtube-design_youtube.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"youtube-reciprocal-rank-fusion","truth_value":"IN","reason":"premise"}]}}