Author

Zhao-Chun Ren

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Preprint Oct 2026

UserArena: Benchmarking Interactive User Simulation for Long-Horizon Shopping Agents

Agentic recommendation pursues shopper goals through sequences of context-dependent decisions. Developing and evaluating such policies requires faithful recommendation world models that capture both the interactive shopping environment and users'behavioral responses over long interactions. Existing resources rarely pro...

Ju-Jia Zhao, Jia-Kai Tang, Jing Yu et al. · 0 citations

#artificial intelligence Preprint Oct 2026

SwarmRSI: Recursive Self-Improvement through Evolving Scientific Agent Swarm

SwarmRSI is introduced, a framework that evolves scientific agent swarms for recursive self-improvement and proposes Feedback-Guided Swarm Mutation to refine hypotheses and their implementations using experimental feedback from other agents and Complementary Swarm Recombination to reuse retained hypotheses and compleme...

Qian-Ru Meng, Xi Zhang, Konstantinos Papakostas et al. · 0 citations

#natural language process... Preprint Sep 2026

Compression Beyond the Uncompressed: A Two-Stage Training Recipe for Soft Context Compression in RAG

DEX-Comp is proposed, a two-stage training recipe that separates reliable imitation from targeted exploration and applies outcome-based reinforcement learning to teacher-failed questions to directly optimize answer correctness.

Shuyu Guo, Shuo Zhang, Zhao-Chun Ren · 0 citations