Journal of System Simulation ›› 2021, Vol. 33 ›› Issue (12): 2854-2863.doi: 10.16182/j.issn1004731x.joss.21-FZ0772

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Study on Prediction of Crystal Properties Based on Deep Learning

Wang Buwei1, Wang Min2, Fan Qian1, Wang Ya'nan1, zhang hanwen1, Yue Yunliang1,*   

  1. 1. College of Information Engineering, Yangzhou University, Yangzhou 225127, China;
    2. School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
  • Received:2021-06-13 Revised:2021-07-29 Online:2021-12-18 Published:2022-01-13

Abstract: Predicting crystal properties using traditional machine learning methods requires complex feature engineering. In order to bypass time-consuming feature engineering, element network (ElemNet), representation learning from stoichiometry (Roost), compositionally-restricted attention-based network (CrabNet) and crystal graph convolution neural network (CGCNN) based on deep learning technology are used to simulate the formation energy, total energy per atom, band gap, and Fermi energy of crystal. The residual learning is introduced into CGCNN, and a crystal graph convolution residual neural network (CGCRN) is proposed. In the CGCRN, the number of hidden layers and the number of nodes in the hidden layers are increased, and the hidden layers are connected by residual connection. Meanwhile, the BatchNorm layers are added for normalization. Compared with CGCNN, the prediction accuracy of 4 physical quantities using CGCRN has increased by 1.3%~4.8%, which is conducive to rapid and accurate prediction of ideal crystal materials.

Key words: deep learning, crystal graph convolution, residual learning, crystal properties

CLC Number: