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Bayesian Optimization for Personalized Vehicle Safety Design
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  
Bayesian Optimization
키워드  
Personalized design
키워드  
Vehicle safety design
키워드  
Gaussian process
키워드  
Variable selection
기타저자  
University of Michigan Industrial & Operations Engineering
기본자료저록  
Dissertations Abstracts International. 87-02B.
전자적 위치 및 접속  
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MARC

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■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.

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