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Chenyan Xiong

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#machine learning Preprint Sep 2026

Delta-Matching: Closing the Final Gap of Native 8-bit Training for LLMs

Reliable FP8 attention remains a barrier to fully native 8-bit large language model training. We derive how forward-backward inconsistencies produce stale delta and empirically show how it distorts training dynamics. Our stale-delta hybrid runs show a modest loss gap at 569M parameters but substantial loss increases an...

Hao-Zhan Tang, Hao Kang, Han Cai et al. · 0 citations
#artificial intelligence Preprint Feb 2026

Evaluating Test-Time Scaling of General LLM Agents

This paper systematically investigates two principal test-time scaling axes of LLM agents: sequential scaling through extended interaction and parallel scaling through trajectory sampling, and finds that neither scaling axis can consistently yield meaningful gains from additional test-time compute in realistic environm...

Xiao-Chuan Li, Ryan Ming, P. Setlur et al. · 23 citations · ⚡1
Jul 2026

ACM: Agentic Context Management for Long Horizon Tasks

This work proposes Agentic Context Management (ACM), a framework that equips agents with purpose-built context editing tools for lossless context management and develops a post-training pipeline that constructs high-quality demonstrations of context management and improves model performance on both agentic search and c...

Xiao-Chuan Li, Ryan Ming, Meng Chu et al. · 1 citation

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