Preprint
Aug 2026
DCEO: Direct Causal Effect Optimization for Long-Term User Value Modeling in E-commerce Search
Industrial e-commerce search systems ultimately aim to optimize the user-level long-term objective, such as n-day cumulative purchases or gross merchandise value (GMV) per user. However, such objectives are defined at the user level, whereas search ranking is based on item-level scores within each request. Existing met...
Jun-Zhao Zhang, Tao Zhang, Liron Yu et al.
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