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Yi-Fan Wu

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#artificial intelligence Review Sep 2026

Fyan: A Human--AI Harness with Semantic Auditing for Document-Level Formalization

We present FYAN, a human--AI harness for document-level mathematical formalization. Rather than treating theorems in isolation, FYAN coordinates an end-to-end workflow spanning specification, proof planning, logical review, Lean proof construction, knowledge curation, and validation, with support for independent superv...

Wei Zhao, Yang-Shuo Zou, Cheng-Xiang Ding et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Mixture of Self-Improving Branches For Agent Harness Optimization

Harness optimization provides a practical setting for recursive self-improvement (RSI), where agent-generated modifications inform subsequent changes through execution feedback. Recent work such as Meta-Harness implements this process through iterative code generation and evaluation, but retains a fixed development set...

Hao-Yu Dong, Yu-Hang Zhou, Zi-Hao Lin et al. · 0 citations
#machine learning Preprint Sep 2026

How to Tame a Multi-Headed Hydra? Adaptive Multi-Category Safety Steering for Large Language Models

As large language models (LLMs) become increasingly widespread, preventing unsafe responses to harmful prompts is essential for their safe deployment. Activation steering offers an approach to improving LLM safety by modifying internal activations during inference without updating model parameters. However, a single pr...

Chen-Xi Wang, Rui-Yang Huang, Li Huang et al. · 0 citations
Jul 2026

Remember When It Matters: Proactive Memory Agent for Long-Horizon Agents

Ablations show that selective intervention outperforms passive bank exposure, always-on injection, advisor-only guidance, advisor-only guidance, and general retrieval, and general retrieval and that selective intervention outperforms passive bank exposure, always-on injection, advisor-only guidance, and general retriev...

Yi-Fan Wu, Lizhu Zhang, Yu-Hang Zhou et al. · 2 citations
Preprint Jul 2026

Aligning Language Models with Selective Prediction

A novel alignment framework, Reinforcement Learning for Selection Reward (RLSR), is proposed, which targets the area under the risk-coverage curve (AURC) -- a popular SP performance metric -- as its alignment objective and achieves substantially better risk-coverage trade-off compared to multiple alignment baselines on...

Gaoxiang Luo, Yi-Fan Wu, Sinian Zhang et al. · 0 citations
#machine learning Preprint Aug 2026

EvoHarness-RL: Learning Self-Evolving Runtime Harness for Long-Horizon LLM Agents

EvoHarness-RL is introduced, which exposes Belief, Progress, and Experience (BPE) as policy-facing harness state and reveals two key dynamics: harness annealing, where training internalizes recurring harness-use patterns into the model policy and shifts the agent from frequent harness calls toward selective external-st...

Xuying Ning, Dongqi Fu, Tianxin Wei et al. · 0 citations

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