SFTGNN:一个高效的球形里埃转换增强图形神经网络,用于高精度的晶体属性预测
1College of Computer Science and Technology (College of Data Science), Taiyuan University of Technology, Taiyuan 030024, China.
ACS omega
|November 17, 2025
概括
我们开发了SFTGNN,一种新的图形神经网络 (GNN) 模型,通过集成球形里叶变换 (SFT) 有效预测晶体特性. 这种方法提高了准确性,并大大降低了与现有模型相比的计算成本.
科学领域:
- 材料科学 材料科学 材料科学
- 计算材料科学科学 计算材料科学
- 在材料中的机器学习
背景情况:
- 晶体材料的特性与它们的原子结构密切相关.
- 图形神经网络 (GNN) 显示出预测晶体属性的潜力.
- 现有的GNN经常忽视角度特征或对角度计算具有高的计算成本.
研究的目的:
- 介绍SFTGNN,一种新的GNN架构,用于高效的晶体属性预测.
- 集成球形里叶变换 (SFT) 进行有效的3D几何信息编码.
- 为了减少捕捉晶体结构内的角度依赖性的计算复杂性.
主要方法:
- 用图形神经网络 (GNN) 集成球形里叶变换 (SFT).
- 原子局部环境的投射到球体波域.
- 在没有明确的列举或额外的图形构造的情况下,将键层角度编码复杂度从O{\displaystyle O} k^2降低到O{\displaystyle O} k).
主要成果:
- SFTGNN有效地结合了三维几何信息,用于预测晶体属性.
- 在多个预测任务的材料项目和贾维斯数据集上取得了最先进的结果.
- 与ALIGNN方法相比,演示了5.3倍更快的训练时间.
结论:
- SFTGNN提供了一种高效和准确的方法来建模晶体结构.
- 将空间几何表示与基于图形的学习相结合是一个有前途的方向.
- 该方法突出了通过先进的机器学习加速材料发现的潜力.
相关概念视频
Crystal Field Theory - Octahedral Complexes
30.5K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
30.5K
Crystal Field Theory - Tetrahedral and Square Planar Complexes
48.0K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
48.0K
Properties of Fourier Transform II
719
The Fourier Transform (FT) is an essential mathematical tool in signal processing, transforming a time-domain signal into its frequency-domain representation. This transformation elucidates the relationship between time and frequency domains through several properties, each revealing unique aspects of signal behavior.
The Frequency Shifting property of Fourier Transforms highlights that a shift in the frequency domain corresponds to a phase shift in the time domain. Mathematically, if x(t) has...
The Frequency Shifting property of Fourier Transforms highlights that a shift in the frequency domain corresponds to a phase shift in the time domain. Mathematically, if x(t) has...
719
Properties of Fourier Transform I
588
The application of Fourier Transform properties in radio broadcasting is multifaceted, enabling significant advancements in the way signals are transmitted and received. Key areas where these properties are utilized include simultaneous multi-channel transmission, audio clip speed adjustments, live broadcast delays for different time zones, audio frequency adjustments, and signal demodulation.
In radio broadcasting, multiple audio signals often need to be transmitted simultaneously. The Fourier...
In radio broadcasting, multiple audio signals often need to be transmitted simultaneously. The Fourier...
588


