A practical guide to offline-online regressions in RecSys: feedback loops, delayed labels, train/serve skew, OPE limits, 11 release gates, and an incident playbook.
RecSys Engineering
Production recommender system articles: offline and online metrics, release gates, incident response, and model quality controls for reliable personalization.
How to teach a language model to understand a catalog through semantic IDs and produce controllable recommendations with explanations