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Bayesian Optimization for Personalized Vehicle Safety Design
Bayesian Optimization for Personalized Vehicle Safety Design
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105236
- ISBN
- 9798291567869
- DDC
- 658
- 저자명
- Liu, Jiacheng.
- 서명/저자
- Bayesian Optimization for Personalized Vehicle Safety Design
- 발행사항
- [Sl] : University of Michigan, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 105 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
- 주기사항
- Advisor: Hu, Jingwen;Jin, Jionghua.
- 학위논문주기
- Thesis (Ph.D.)--University of Michigan, 2025.
- 초록/해제
- 요약Personalized system design aims to tailor engineering solutions to individual characteristics, enabling improved performance, safety, and user satisfaction across heterogeneous populations. This dissertation develops a Bayesian Optimization (BO) framework for simulation-based personalized design, with applications to enhance vehicle safety systems. Three major works have been explored. The first work develops the foundational framework for personalized policy optimization by proposing a functional, parameterized design policy that maps subject-specific covariates to optimal designs. This approach reduces the dimensionality of the searching space and enables tractable optimization across a heterogeneous population. A novel acquisition function, Personalized Information Gain (PIG), is developed and theoretically shown to restrict the search space to the trajectory of the optimal design policy, improving sampling efficiency. The second work addresses scalability and interpretability in the high-dimensional design spaces by introducing the Personalized Design Variable Score (PDVScore), which is a principled variable selection score that combines gradient-based sensitivity with population-level variability to identify important personalized design variables. This approach is supported by a theoretical justification linking the score to the Wasserstein-2 distance, offering a stable and interpretable measure of variable relevance. The third study extends the framework to a robust optimal solution that accounts for covariate measurement errors for practical deployment. A variance-based penalty term is incorporated into the optimization objective to reduce the performance gap between simulation and real-world conditions. This robust formulation is theoretically justified as an upper confidence bound on the deployed system response. These methodologies are evaluated through both computer simulations and a case study of designing a personalized high-fidelity vehicle restraint system. The results demonstrate substantial improvements in sampling efficiency, robustness to covariate uncertainty, and balanced safety performance across heterogeneous populations. Collectively, this work contributes a systemic and robust framework for scalable and reliable personalized system design under real-world deployment conditions.
- 일반주제명
- Industrial engineering
- 일반주제명
- Statistics
- 일반주제명
- Automotive engineering
- 일반주제명
- Mechanical engineering
- 키워드
- Gaussian process
- 기타저자
- University of Michigan Industrial & Operations Engineering
- 기본자료저록
- Dissertations Abstracts International. 87-02B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■006m o d
■007cr#unu||||||||
■020 ▼a9798291567869
■035 ▼a(MiAaPQ)AAI32271954
■035 ▼a(MiAaPQ)umichrackham006380
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a658
■1001 ▼aLiu, Jiacheng.
■24510▼aBayesian Optimization for Personalized Vehicle Safety Design
■260 ▼a[Sl]▼bUniversity of Michigan▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a105 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-02, Section: B.
■500 ▼aAdvisor: Hu, Jingwen;Jin, Jionghua.
■5021 ▼aThesis (Ph.D.)--University of Michigan, 2025.
■520 ▼aPersonalized system design aims to tailor engineering solutions to individual characteristics, enabling improved performance, safety, and user satisfaction across heterogeneous populations. This dissertation develops a Bayesian Optimization (BO) framework for simulation-based personalized design, with applications to enhance vehicle safety systems. Three major works have been explored. The first work develops the foundational framework for personalized policy optimization by proposing a functional, parameterized design policy that maps subject-specific covariates to optimal designs. This approach reduces the dimensionality of the searching space and enables tractable optimization across a heterogeneous population. A novel acquisition function, Personalized Information Gain (PIG), is developed and theoretically shown to restrict the search space to the trajectory of the optimal design policy, improving sampling efficiency. The second work addresses scalability and interpretability in the high-dimensional design spaces by introducing the Personalized Design Variable Score (PDVScore), which is a principled variable selection score that combines gradient-based sensitivity with population-level variability to identify important personalized design variables. This approach is supported by a theoretical justification linking the score to the Wasserstein-2 distance, offering a stable and interpretable measure of variable relevance. The third study extends the framework to a robust optimal solution that accounts for covariate measurement errors for practical deployment. A variance-based penalty term is incorporated into the optimization objective to reduce the performance gap between simulation and real-world conditions. This robust formulation is theoretically justified as an upper confidence bound on the deployed system response. These methodologies are evaluated through both computer simulations and a case study of designing a personalized high-fidelity vehicle restraint system. The results demonstrate substantial improvements in sampling efficiency, robustness to covariate uncertainty, and balanced safety performance across heterogeneous populations. Collectively, this work contributes a systemic and robust framework for scalable and reliable personalized system design under real-world deployment conditions.
■590 ▼aSchool code: 0127.
■650 4▼aIndustrial engineering
■650 4▼aStatistics
■650 4▼aAutomotive engineering
■650 4▼aMechanical engineering
■653 ▼aBayesian Optimization
■653 ▼aPersonalized design
■653 ▼aVehicle safety design
■653 ▼aGaussian process
■653 ▼aVariable selection
■690 ▼a0546
■690 ▼a0548
■690 ▼a0463
■690 ▼a0540
■71020▼aUniversity of Michigan▼bIndustrial & Operations Engineering.
■7730 ▼tDissertations Abstracts International▼g87-02B.
■790 ▼a0127
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359922▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


