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The JD Oxygen AI Item Center (Oxygen AIIC) is an industrial-scale platform leveraging LLMs and VLMs to enhance item understanding and management for JD.com, addressing challenges related to fast-emerging concepts and high-quality knowledge production across billions of SKUs. Key innovations include a collaborative ontology engineering approach, a "Semantic Search then Discrimination" architecture for scalable knowledge identification, and self-evolving models that achieve 94.2% precision and 82.8% recall. The platform has significantly improved operational efficiency, with search-traffic coverage at 80.4% and a 37% reduction in item-information quality issues.
Achieving 94.2% precision in item knowledge production at an unprecedented scale, Oxygen AIIC transforms e-commerce item management.
JD$.$com, one of the world's largest e-commerce platforms, serves over 700 million active users and millions of merchants, with a catalog of tens of billions of SKUs. At this scale, high-quality, structured item knowledge underpins a better consumer experience, lower management costs, and higher operational efficiency-yet producing and serving it poses three industrial-scale challenges: fast-emerging concepts, high-quality knowledge production for massive SKUs, and diverse downstream requirements. To address these challenges, we present the JD Oxygen AI Item Center (Oxygen AIIC), an industrial-scale platform built on LLMs/VLMs for item-knowledge production and service. Oxygen AIIC is built around four core pillars: (i) ontology engineering driven by efficient human-AI collaboration, which supports the dynamic evolution and agile expansion of an ontology with millions of entries; (ii) a"Semantic Search then Discrimination"(S2D) knowledge identification architecture that, combined with throughput improvement strategies, enables scalable, extensible, and high-throughput AI Item Library production for tens of billions of SKUs; (iii) self-evolving item-understanding LLMs/VLMs that improve in a stable and controllable manner, enabling knowledge production with 94.2% precision and 82.8% recall; and (iv) a unified item tunnel that serves as the data and service hub. Oxygen AIIC now covers tens of thousands of JD categories and processes hundreds of millions of item updates per day on Huawei Ascend NPUs. It has accumulated hundreds of billions of item-knowledge assets. Deployed across core business scenarios-including search, recommendation, operations, category planning-Oxygen AIIC has delivered measurable gains at scale. Search-traffic coverage reaches 80.4%, item-information quality issues drop by 37%, the automated fill rate of core attributes during item listing exceeds 80%.
Tsinghua AI