FLUID retires candidate-side item IDs in production livestream rankers via cross-domain multimodal hierarchical codes and late-fusion ID-free design, reporting online gains of +0.55% Quality Watch Duration and +2.05% Cold-Start Room Views.
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FLUID: From Ephemeral IDs to Multimodal Semantic Codes for Industrial-Scale Livestreaming Recommendation
FLUID retires candidate-side item IDs in production livestream rankers via cross-domain multimodal hierarchical codes and late-fusion ID-free design, reporting online gains of +0.55% Quality Watch Duration and +2.05% Cold-Start Room Views.