RECOMMENDATION-SYSTEMS4 MIN READ
Sort Metric Roles
Classify recommender metrics by role so launch decisions are not driven by a single number.
Place each metric into the role it should play in a recommender launch brief. Primary objective Diagnostic metric Guardrail System health check Completed useful sessions for the recommended lesson feed Click-through rate by slot position Hide or not-interested rate after recommendation exposure Ranker p95 latency during peak traffic Qualified inquiry rate for marketplace recommendations Candidate pool size by retrieval source Supplier exposure coverage across eligible inventory Feature freshness age for the latest training table
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