高斯过程
贝叶斯优化
材料科学
过程(计算)
贝叶斯概率
贝叶斯推理
计算机科学
钛镍合金
形状记忆合金
机器学习
人工智能
高斯分布
量子力学
操作系统
物理
作者
Alexandros Solomou,Guang Zhao,Shahin Boluki,Jobin Joy,Xiaoning Qian,I. Karaman,Raymundo Arroyave,Dimitris C. Lagoudas
标识
DOI:10.1016/j.matdes.2018.10.014
摘要
In this study, a framework for the multi-objective materials discovery based on Bayesian approaches is developed and demonstrated on the efficient discovery of precipitation-strengthened NiTi shape memory alloys with up to three desired properties. The framework is used to minimize the required computational experiments for the discovery of the targeted materials, performed by a thermodynamically-consistent micromechanical model that predicts the materials response based on its composition and microstructure. The developed scheme features a Bayesian optimal experimental design process that operates in a closed loop. During each iteration of the process, a Gaussian process regression model is constructed based on the available computational data and used to emulate the response of the material in the unexplored regions of the materials design space. The sequential exploration of the materials design space is carried out by using an optimal experiment selection policy based on the expected hyper-volume improvement acquisition function that accounts for the uncertainty on the predictions of the regression model. The results indicate the considerable efficiency of the proposed framework, in discovering the targeted materials, compared with the exhaustive model-driven exploration of the materials design space.
科研通智能强力驱动
Strongly Powered by AbleSci AI