使用深度学习语言模型对材料的基于组成的氧化状态预测
Nihang Fu1, Jeffrey Hu1,2, Ying Feng3
1Department of Computer Science and Engineering, University of South Carolina, Columbia, SC, 29201, USA.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|August 8, 2023
概括
预测无机化合物的氧化状态 (OS) 现在可以使用一种新的深度学习模型,BERTOS. 这种人工智能方法只从化学成分准确地确定OS,有助于发现新材料.
科学领域:
- 计算材料科学 计算材料科学
- 化学领域的人工智能
- 对无机化合物的预测建模.
背景情况:
- 氧化状态 (OS) 对于理解化学性质和材料行为至关重要.
- 目前用于预测操作系统的方法依赖于启发式规则,但有许多例外,限制了准确性.
- 现有的机器学习模型主要关注金属离子,需要结构信息.
研究的目的:
- 开发一种新的深度学习模型,用于预测无机化合物中所有元素的氧化状态.
- 为了使基于组合的氧化状态预测,消除了确定晶体结构的需要.
- 促进对假设材料的大规模选,以加速材料发现.
主要方法:
- 基于深度学习的新型BERT转换器语言模型的实施,称为BERTOS.
- 培训和比较BERTOS模型在清理的无机晶体结构数据库 (ICSD) 上.
- 评估模型的准确性,以预测所有元素的氧化状态,特别是氧化物材料.
主要成果:
- 在ICSD数据集上,BERTOS在所有元素的氧化状态预测方面实现了96.82%的准确性.
- 该模型在预测氧化物材料中的氧化状态方面表现出高精度 (97.61%).
- 该研究展示了BERTOS在选假设材料组成中的实用性.
结论:
- 伯托斯模型提供了一个高度准确的,基于成分的方法,用于预测无机化合物的氧化状态.
- 这种方法克服了启发式规则和结构依赖模型的局限性.
- 伯托斯通过快速计算选,显著提升了发现新材料的潜力.
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