Efficient Bayesian inference using adversarial machine learning and low-complexity surrogate models
- 주제(키워드) adversarial network , Bayesian inference , first-principles simulation , machine learning , parameter estimation , uncertainty
- 관리정보기술 faculty
- 등재 SCIE, SCOPUS
- 발행기관 Elsevier Ltd
- 발행년도 2021
- URI http://www.dcollection.net/handler/ewha/000000182070
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.compchemeng.2021.107322
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
Bayesian inference is a key method for estimating parametric uncertainty from data. However, most Bayesian inference methods require the explicit likelihood function or many samples, both of which are unrealistic to provide for complex first-principles-based models. Here, we propose a novel Bayesian inference methodology for estimating uncertain parameters of computationally intensive first-principles-based models. Our approach exploits both low-complexity surrogate models and variational inference with arbitrarily expressive inference models. The proposed methodology indirectly predicts output responses and casts Bayesian inference as an optimization problem. We demonstrate its performance via synthetic problems, computational fluid dynamics, and kinetic Monte Carlo simulation to verify its applicability. This fast and reliable methodology enables us to capture multimodality and the shape of complicated posterior distributions with the quality of state-of-the-art Hamiltonian Monte Carlo methods but with much lower computation cost. © 2021 Elsevier Ltd
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