Author

Qing Ping

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Open access 2026

Small Agents, Big Gains: Journey-Aware and Critic-Guided Simulation for Long-Horizon Shopping Dialogues

This work proposes a closed-loop Multi-Agent Simulation Framework to synthe-size diverse, faithful, and policy-aligned shopping trajectories, and presents synthetic data that enables a small model to significantly outperform same-size baselines and surpass a large-model baseline.

Qing Ping, Changyou Chen, Binxuan Huang · Proceedings of the 64th Annu... · 0 citations

#machine learning Preprint Aug 2026

Prism-GRPO: Faster VLA Policy Optimization via Splitting Same-outcome Groups

Across four RoboTwin tasks spanning different horizons and coordination patterns, Prism-GRPO improves success and quality at matched rollout budgets and reaches target success rates with up to 56% fewer rollouts.

Zeyun Deng, Yuzhe Lu, Ya-Wei Wang et al. · 0 citations