Jingwei Zhuo

Generative retrieval formulates document retrieval as an identifiergeneration task. While prevailing methods increasingly adopt SemanticIDs (SIDs), their opaque nature and rigid mappings strugglewith the dynamic inventory and strict interpretability requirementsof E-commerce search. Furthermore,...

Large-scale short-video search ranking models are typically trained on sparse co-occurrence signals over hashed item identifiers (HIDs). While effective at memorizing frequent interactions, such ID-based models struggle to generalize to long-tailed items with limited exposure. This memorization–g...