Abstract
This study was done with the aim to analyze and evaluate the strengths and limitations of the Markov Chain Monte-Carlo (MCMC), Transitional Markov Chain Monte-Carlo (TMCMC), and Sequential Monte-Carlo (SMC) sampling methods in the context of solving engineering design problems. For each of these methods discussed in this paper, a case example will also be presented in the form of simple toy-model problems to demonstrate its use and effectiveness in estimating parameters under uncertainty and comparing it with determined results. For the MCMC case example, a simple harmonic oscillator will be looked into to estimate the value of the spring constant, k. For the TMCMC case example, the problem will be extended into a coupled oscillator problem and the goal would be to estimate the values of two spring constants to which there is imprecise knowledge: κ and κ12. Finally, for the SMC case example, a simple harmonic oscillator will be analyzed once again as a static linear system to estimate the spring constant, k. As such, this conference paper is also targeted at readers who are new to these methods and to provide succinct information in facilitating the understanding of the three sampling approaches.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 29th European Safety and Reliability Conference, ESREL 2019 |
| Editors | Michael Beer, Enrico Zio |
| Pages | 1866-1873 |
| Number of pages | 8 |
| ISBN (Electronic) | 9789811127243 |
| DOIs | |
| Publication status | Published - 26 Sept 2019 |
| Event | 29th European Safety and Reliability Conference, ESREL 2019 - Hannover, Germany Duration: 22 Sept 2019 → 26 Sept 2019 |
Publication series
| Name | Proceedings of the 29th European Safety and Reliability Conference, ESREL 2019 |
|---|
Conference
| Conference | 29th European Safety and Reliability Conference, ESREL 2019 |
|---|---|
| Country/Territory | Germany |
| City | Hannover |
| Period | 22/09/19 → 26/09/19 |
Funding
This research would not have been possible without the guidance and inputs from my supervisors Dr Edoardo Patelli and Dr Alice Cicirello who are also co-authors of this paper. In addition, we would also like to thank Dr Matteo Broggi from Leibniz Universität Hannover and Dr Peter Green from University of Liverpool who provided their insights on the topics shared in this paper, without which, the writing of this paper would not have been made possible as well. Finally, we would also like to thank the Institute for Risk and Uncertainty for the facilities which allowed for this research to be carried out smoothly as well as the Singapore Nuclear Research and Safety Initiatives for the sponsorship for my PhD study.
Keywords
- bayesian inference
- estimation methods
- markov chain monte-carlo
- random sampling
- sequential monte-carlo
- transitional markov chain monte-carlo
- inference engine
- safety engineering
- uncertainty analysis
- coupled oscillators
- harmonic oscillators
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