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Weiyu Guo

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Preprint Aug 2026

Diagnosing and narrowing the simulation-to-real gap in powder X-ray diffraction with a wet-dry agentic loop

Powder X-ray diffraction (PXRD) is the routine probe of crystalline matter, yet its analysis is the rate-limiting step as laboratories automate acquisition. Deep-learning analyzers excel on simulated patterns and degrade on measured ones. This simulation-to-real gap is structural, not additive: synthetic denoising give...

Shaoguang Wang, Weiyu Guo, Ben Fei et al. · 0 citations
Preprint Aug 2026

Diagnosing and narrowing the simulation-to-real gap in powder X-ray diffraction with a wet-dry agentic loop

Powder X-ray diffraction (PXRD) is the routine probe of crystalline matter, yet its analysis is the rate-limiting step as laboratories automate acquisition. Deep-learning analyzers excel on simulated patterns and degrade on measured ones. This simulation-to-real gap is structural, not additive: synthetic denoising give...

Shaoguang Wang, Weiyu Guo, Ben Fei et al. · 0 citations
Preprint Jul 2026

LabRobFail: A Benchmark for Robotic Failure Analysis in Chemical Self-driving Laboratory

LabRobFail, a failure-centric framework for learning and evaluating robotic failure analysis in chemical laboratories, and LabRobFail-VLM, a domain-specialized vision-language model that generates structured failure diagnoses and recovery instructions, demonstrate the value of fine-grained failure understanding for clo...

Haobo Wang, Baoli Sun, Anqi Zou et al. · 0 citations

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