STAR model

Alimama Tech

Nov 24, 2021 · Artificial Intelligence

STAR: Star Topology Adaptive Recommender for Multi-Scenario CTR Prediction

STAR introduces a star‑shaped CTR prediction architecture that jointly learns shared and scenario‑specific patterns via a fully‑connected network with central and private parameters, partitioned normalization, and an auxiliary scenario network, delivering consistent offline gains and +8% online CTR improvement while scaling to many domains without extra cost.