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arXiv 2403.05729cond-mat.mtrl-sci
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各种通用机器学习原子间势的系统评估

Systematic assessment of various universal machine-learning interatomic potentials

Haochen Yu, Matteo Giantomassi, Giuliana Materzanini, Junjie Wang, Gian-Marco Rignanese

AI总结:

本文系统评估了五种基于图神经网络的通用机器学习原子间势,利用DFT验证研究和材料项目数据,为材料科学家选择合适模型提供指导与优化建议。

摘要:

机器学习原子间势已彻底改变了原子尺度的材料建模。得益于这些势,现在确实可以在非常大的时间和长度尺度上执行从头算质量的模拟。最近,各种通用机器学习模型被提出作为一种开箱即用的方法,避免为每种特定感兴趣的材料训练和验证特定势的需要。在本文中,我们回顾并评估了五种不同的通用机器学习原子间势(uMLIPs),它们均基于图神经网络架构,这些架构已证明具有从一个化学系统到另一个化学系统的可迁移性。评估过程依赖于来自密度泛函理论实现的最新验证研究以及材料项目的数据。通过这一全面评估,我们旨在为材料科学家选择适合其特定研究问题的模型提供指导,提供模型选择和优化的建议,并激发关于当前材料科学机器学习方法中潜在改进领域的讨论。

英文摘要:

Machine-learning interatomic potentials have revolutionized materials modeling at the atomic scale. Thanks to these, it is now indeed possible to perform simulations of \abinitio quality over very large time and length scales. More recently, various universal machine-learning models have been proposed as an out-of-box approach avoiding the need to train and validate specific potentials for each particular material of interest. In this paper, we review and evaluate five different universal machine-learning interatomic potentials (uMLIPs), all based on graph neural network architectures which have demonstrated transferability from one chemical system to another. The evaluation procedure relies on data both from a recent verification study of density-functional-theory implementations and from the Materials Project. Through this comprehensive evaluation, we aim to provide guidance to materials scientists in selecting suitable models for their specific research problems, offer recommendations for model selection and optimization, and stimulate discussion on potential areas for improvement in current machine-learning methodologies in materials science.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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