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Xiao-Gang Xu

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#machine learning Preprint Aug 2026

PertMind: Eliciting Emergent Biological Reasoning in LLM via Reinforcement Learning on Cellular Perturbation Data

It is shown that cellular perturbation atlases can instead become reinforcement-learning environments, where measured gene responses provide computable rewards for biological reasoning, and introduces PertMind, which combines trusted-trajectory supervised initialization with gene-, pathway-, and format-level reinforcem...

Zhen-Chao Tang, Xiao-Gang Xu, Jia-Fei Wu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Toolcompass: Guiding Tool Trialing, Not Suppressing It

This work introduces ToolCompass, a post-training framework that guides tool trialing by organizing tool-call representations according to shared functions and jointly reduces intra-function variation across domains and increases inter-function separation.

Jun-Lin Fang, Chong-Chong Zhang, Do Nguyen-Thanh et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Exploring the Potential of Contrastive Language-Image Pre-training for Multi-Source Remote Sensing Data

OmniRSCLIP is an end-to-end contrastive learning framework that supports multi-source sensor inputs for remote sensing vision-language modeling and introduces a spectral-context-aware mask-based contrastive learning scheme to suppress modality-specific redundant features and enhance fine-grained image-text alignment.

Xian-Yang Miao, Ke-Lu Yao, Ye-Hua Huang et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Beyond Outcome Gaps: Process-Aware Fairness Diagnosis for LLM-based Multi-Agent Decision Systems

SCOPED-Hiring reveals that balanced final hire rates can mask hidden trajectory unfairness in multi-agent decision trajectories and reduces total layered burden by 72.3% while shifting the hire rate by only 1.86 pp, showing that process diagnosis can guide effective repair.

Yi-Ran Zhao, Lu Zhou, Liming Fang et al. · 0 citations
#artificial intelligence Preprint Sep 2026

LEAP: Likelihood Elicitation and Aggregation for LLM-based Probabilistic Forecasting

This work proposes LEAP (Likelihood Elicitation and Aggregation for Probabilistic forecasting), which reorganizes how collected evidence is used in the prediction stage and improves most prediction and calibration metrics across models and remains stronger under controlled comparisons of prior access, inference budget,...

Yu-Fei Chen, Yi-Ran Zhao, Xiao-Gang Xu et al. · 1 citation
Preprint Aug 2026

Remember-R1: Mitigating Long-Context Visual Forgetting through Reinforcement Learning

Remember-R1 is proposed, a reinforcement learning framework that mitigates long-context visual forgetting by applying process-level supervision directly on the original reasoning trajectory, demonstrating its effectiveness in mitigating long-context visual forgetting.

Jianmin Chen, Jiaqi Tang, Wei Wei et al. · 0 citations
Review Aug 2026

ARAC: Benchmarking Auto-Research's Alignment and Completeness on End-to-End Researchs

The rapid advancement of Auto-Research has surfaced a fundamental evaluation challenge: how can we measure the alignment, logical coherence, and evolutionary completeness of its research trajectory with human research behavior? We propose Auto-Research's Alignment and Completeness, ARAC-Bench: a Researcher-Mimicking Ev...

Jiale Cui, Yue-Yao Yuan, Kai-Xi Zhong et al. · 0 citations
Preprint Aug 2026

Beyond Execution: Auditing Experimental Fidelity in LLM-Driven Scientific Research

ABE-Ralph is introduced, a reference-anchored auditing framework that represents claims, protocols, required components, baselines, and metrics as structured experimental constraints, guides implementation through an 8-step workflow, and performs quantitative, qualitative, and code-level verification.

Le-Zhi Yu, Xiao-Gang Xu, Yuhong Zhou et al. · 0 citations

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