System Consistency

Alimama Tech

Nov 23, 2022 · Artificial Intelligence

Enhancing Recommendation System Consistency via Feedback Cascading and LTR Models

The paper proposes a teacher‑student architecture that uses feedback cascading and learning‑to‑rank models with ΔnDCG‑based loss and bid‑aware optimizations to align coarse and fine sorting stages, address sparse data, and improve recommendation consistency, achieving a 4.8% RPM lift in A/B tests.