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Author

Hanjia Lyu

3 papers indexed here

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Decision-Oriented Recommendation Reranking: An Empirical Study of Jev

Large language models (LLMs) have shown promise for recommendation reranking, but their use introduces an important tradeoff between recommendation quality and serving efficiency. We investigate whether a decision-oriented model provides a useful alternative when the reranking task is fundamentally a structured choice...

Hanjia Lyu, Ying-Long Xia · 0 citations
#natural language process... Preprint Sep 2026

SocioVerse2: A Longitudinal Dynamic Social Simulation Framework under a Human-AI Co-evolutionary Paradigm

This work extends SocioVerse 1.0 into a human-AI co-evolutionary paradigm built from two loops and one infrastructure, and validates SocioVerse2 across three case families and seven case studies, from reproducing canonical agent-based models to modeling policy processes on real records and nowcasting macro-economic ind...

Xin-Nong Zhang, Jiayu Lin, Jia Wang et al. · 0 citations

Revising Context, Shifting Simulated Stance: Auditing LLM-Based Stance Simulation in Online Discussions

This work studies counterfactual context revision as a framework for auditing LLM-based stance simulation and reveals effective and robust stance transitions in both text-only and multimodal strategies across different polarization-preference mechanisms.

Xinnong Zhang, Wanting Shan, Hanjia Lyu et al. · 0 citations

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