Author

Xiangyang Xu

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Jul 2026

Beyond Action Imitation: Learning a Decision-Aware User Simulator for Online Advertising

DASH is a decision-aware user simulator that jointly generates thinking traces and predicts behavioral actions from heterogeneous cross-domain histories and tailors a rubric-based reward model that evaluates thinking traces along form, content, and logic for RL training.

Zi-Hang Chen, Jiaer Zheng, Xiangyang Xu et al. · arXiv.org · 0 citations