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Yi-Chao Du

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#artificial intelligence Preprint Sep 2026

ActionPiece: Rethinking Action Tokenization for Autoregressive Vision-Language-Action Models

This work introduces physical rank consistency (PRC) to measure how well tokenization preserves local physical distance rankings after reconstruction, and presents ActionPiece, which preserves physical action relationships through joint supervision of representation learning and quantization.

Shijie Lian, Bin Yu, Zhao-Long Shen et al. · 1 citation
#natural language process... Preprint Sep 2026

Neuron-Guided Fine-Tuning: Unlocking Efficient Alignment Mechanisms for Large Language Models

Experimental results across three models across both domain-specific and general benchmarks demonstrate that NGFT significantly outperforms existing mainstream fine-tuning methods in both efficiency and performance, while effectively mitigating catastrophic forgetting.

Ze-Yu Wu, Junchao Wu, Shu-Dong Liu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

UniRRM: Unified Reasoning Reward Models Across Languages and Evaluation Paradigms

A unified reasoning reward model supporting multiple languages and evaluation paradigms, UniRRM uses a staged reasoning chain to dynamically generate task-generic and instruction-specific criteria, enabling fine-grained, input-adaptive judgments while maintaining consistency across languages.

Peng Lai, Yi-Chao Du, Junchao Wu et al. · 1 citation

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