HIT augments the two-tower pre-ranking architecture with class-conditional generators and multi-head MaxSim matching, reporting consistent AUC gains on three public datasets and +1.66% GMV in a Tencent online A/B test.
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HIT Model: A Hierarchical Interaction-Enhanced Two-Tower Model for Pre-Ranking Systems
HIT augments the two-tower pre-ranking architecture with class-conditional generators and multi-head MaxSim matching, reporting consistent AUC gains on three public datasets and +1.66% GMV in a Tencent online A/B test.