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arXiv · 2605.28487

ProvMind: Provenance-grounded reasoning for materials synthesis

Yiming Zhang·Ryo Tamura·Koji Tsuda
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Abstract

Materials process optimization requires reasoning over routes, conditions, tools and causal dependencies, yet most computational formulations flatten synthesis procedures into text or ordered steps. We introduce MatProcBench, a provenance-grounded benchmark constructed from literature-mined MatPROV graphs, to evaluate seven process-reasoning tasks spanning route continuity, step-level variable inference and global causal consistency under both same-split and shift-aware evaluation, including a strict dual-OOD split that combines temporal and material-class shift. We further introduce ProvMind, a process-memory reasoning framework that retrieves analogous training processes, converts them into provenance-aware option-level compatibility scores, and uses a language model for constrained final decision making. ProvMind achieves 52.84\% accuracy on the dual-OOD split, outperforming prompting, retrieval-augmented and supervised fine-tuning baselines.

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Yiming Zhang, Ryo Tamura, Koji Tsuda. 2026-05-27. ProvMind: Provenance-grounded reasoning for materials synthesis. https://arxiv.org/abs/2605.28487

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