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Author

Ruichen Yao

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Book Jul 2026

Topology-Aware Tokenization for Generative Recommendation

Topology-Aware Tokenization (TopoTok) is proposed, an item tokenization framework that preserves item relational structure throughout the quantization hierarchy and effectively alleviates topology distortion and consistently outperforms state-of-the-art tokenizers.

Yao-Kun Liu, Yi-Fan 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.

Yao-Kun Liu, Yi-Fan Liu, D. Zhang et al. · 1 citation

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