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Yaokun Liu

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#artificial intelligence Preprint Sep 2026

SIPO: Unifying Reinforcement Learning with On-Policy Self-Distillation

Reinforcement learning with verifiable rewards (RLVR) has become a standard paradigm for improving large language models (LLMs) on various tasks, yet its sparse outcome rewards lack token-level credit assignment for intermediate steps. To address this, on-policy self-distillation (OPSD) leverages a self-teacher with pr...

Zhenrui Yue, Hui-Min Zeng, Yue-Qi Wang et al. · 0 citations
Jul 2026

Topology-Aware Tokenization for Generative Recommendation

Generative recommendation reformulates sequential recommendation as an autoregressive generation task, yet a critical issue in this paradigm remains overlooked: topology distortion in item tokenization. In particular, we observe that the intrinsic adjacency relationships of items in the pretrained semantic embedding sp...

Yaokun Liu, Yifan Liu, Zhenrui Yue et al. · 0 citations
#human-computer interacti... Book Open access Aug 2026

Beyond Truth Discovery: A Two-Stage Framework to Assess the Severity of False Claim during Disasters

This work proposes a two-stage framework to assess the severity of false claims during disasters, and investigates false claim severity assessment as a human-AI alignment problem, evaluating whether models can reproduce human judgments under a shared evaluation rubric rather than merely predicting severity labels.

Ruichen Yao, Tejna Dasari, G. Baispay et al. · 0 citations
Preprint Aug 2026

PropUQ-MAS: Propagation-Aware Uncertainty Quantification for LLM Multi-Agent Systems

PropUQ-MAS is proposed, an error propagation-aware UQ framework that represents MAS execution as a communication-structured graph and estimates each step's reliability by combining local uncertainty with uncertainty inherited from upstream messages.

Yaokun Liu, Yifan Liu, D. Zhang et al. · 0 citations

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