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The Interplay of Optimization and Machine Learning to Solve Large-Scale Black-Box Noisy Functions
The Interplay of Optimization and Machine Learning to Solve Large-Scale Black-Box Noisy Fu...
The Interplay of Optimization and Machine Learning to Solve Large-Scale Black-Box Noisy Functions

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202105119
ISBN  
9798293847280
DDC  
310
저자명  
Maneekul, Pariyakorn.
서명/저자  
The Interplay of Optimization and Machine Learning to Solve Large-Scale Black-Box Noisy Functions
발행사항  
[Sl] : University of Washington, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
161 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-03, Section: B.
주기사항  
Advisor: Zabinsky, Zelda B.
학위논문주기  
Thesis (Ph.D.)--University of Washington, 2025.
초록/해제  
요약High-dimensional black-box optimization presents an increasingly prevalent challenge in modern science and engineering. This dissertation addresses this challenge through a novel interplay between optimization and machine learning methods, developing adaptive search algorithms that strike a balance between exploration, exploitation, and estimation. The proposed algorithms leverage machine learning techniques to construct surrogate models, thereby enhancing the efficiency of the optimization process.The dissertation proposes a multi-level Partitioning and Branch-and-Bound (PBnB) algorithm designed for level-set approximation, enhancing the original PBnB algorithm significantly. This multi-level PBnB algorithm employs importance sampling to strategically identify promising subregions of the partitioned search space. Its performance is further enhanced by integrating Gaussian processes as a surrogate model to guide local sampling exploration. During the process, the target level set is approximated by classifying subregions as either pruned (no intersection with target level set), maintained (contained within target level set), or undecided. This enhanced version of the PBnB algorithm introduces an adaptive sampling probability that strategically directs samples to the most promising regions. Since this importance sampling results in dependency amongst samples, we have applied a statistical method to construct a confidence interval on the probability of correctly classifying a subregion as pruned or maintained. The contribution to the interplay of optimization and machine learning is the local sampling within each subregion. We incorporate Gaussian processes and regularized quadratic regression, common and successful methods for prediction in machine learning for level-set approximation. The analysis of this multi-level PBnB algorithm quantifies the quality of the level set approximation by deriving probability bounds on the volume of incorrectly pruned or maintained regions, which accounts for the effects of importance sampling.To address the challenges of high dimensionality, this dissertation introduces the Branching Adaptive Surrogate Search Optimization (BASSO) framework that conceptualizes the use of branching and surrogate modeling for black-box optimization. BASSO generalizes multi-level PBnB and adapts it to optimization as opposed to level-set approximation. A finite-time analysis of BASSO proves that the expected number of BASSO function evaluations needed to first sample a point in the global optimum vicinity is linear in dimension given that two strong assumptions are satisfied. The desired linearity result suggests an algorithm that is scalable to high dimensions in theory. This research explores several variations to implement BASSO and partially satisfy the two assumptions. In this part of the research, methods used in machine learning are introduced to improve the chance of sampling in the improving region. One BASSO implementation incorporates Gaussian processes as a surrogate model and a second uses regularized quadratic regression as a surrogate model to predict where to sample next within a subregion. The synergy between the surrogate model and the optimization algorithm work together to balance exploration and exploitation. The local surrogate model guides sampling within a subregion, while the adaptive subregion probabilities identify promising subregions. This interplay allows the system to effectively use both local subregion information (from the surrogate model) and global information (from the adaptive probabilities) to improve its search.Numerical experiments of BASSO provide insights into the gap between theoretical ideal performance and the performance of proposed implementation with machine learning techniques to tackling high dimensional black-box problem. This dissertation also explores partitioning, clustering and decomposition as techniques for high-dimensional optimization.While the proposed multi-level PBnB algorithm and BASSO framework focus on balancing exploration and exploitation for deterministic, black-box optimization, this dissertation also considers estimation when dealing with a noisy black-box function. The dissertation extends the Single Observation Search Algorithm (SOSA) by incorporating insight from machine learning techniques. The original neighborhood averaging technique for noisy function value estimation of SOSA is replaced with a new quadratic regression, extending the concept of basis expansion. Complementing this, the search strategy is improved by incorporating optimistic sampling, a concept drawn from reinforcement learning, to more effectively guide exploration. This research contributes to the interplay of optimization and machine learning by providing quadratic regression as an estimation method within a single-observation scheme and achieving convergence results while accounting for dependency between samples. Theoretical convergence results for this SOSA extension are presented, and numerical experiments on benchmark problems demonstrate performance gains over the baseline algorithm.Finally, this dissertation identifies possible applications and future research opportunities arising from the interplay of optimization and machine learning in solving large-scale black-box noisy functions. This includes a discussion of quantum computing approaches for global optimization, considering both their theoretical promises and practical challenges.
일반주제명  
Statistics
일반주제명  
Engineering
일반주제명  
Computer engineering
키워드  
Black-box optimization
키워드  
Gaussian process
키워드  
High-dimensional optimization
키워드  
Machine learning
키워드  
Quantum computing
키워드  
Partitioning
키워드  
Branch-and-Bound
기타저자  
University of Washington Industrial and Systems Engineering
기본자료저록  
Dissertations Abstracts International. 87-03B.
전자적 위치 및 접속  
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MARC

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■24510▼aThe  Interplay  of  Optimization  and  Machine  Learning  to  Solve  Large-Scale  Black-Box  Noisy  Functions
■260    ▼a[Sl]▼bUniversity  of  Washington▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a161  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-03,  Section:  B.
■500    ▼aAdvisor:  Zabinsky,  Zelda  B.
■5021  ▼aThesis  (Ph.D.)--University  of  Washington,  2025.
■520    ▼aHigh-dimensional  black-box  optimization  presents  an  increasingly  prevalent  challenge  in  modern  science  and  engineering.  This  dissertation  addresses  this  challenge  through  a  novel  interplay  between  optimization  and  machine  learning  methods,  developing  adaptive  search  algorithms  that  strike  a  balance  between  exploration,  exploitation,  and  estimation.  The  proposed  algorithms  leverage  machine  learning  techniques  to  construct  surrogate  models,  thereby  enhancing  the  efficiency  of  the  optimization  process.The  dissertation  proposes  a  multi-level  Partitioning  and  Branch-and-Bound  (PBnB)  algorithm  designed  for  level-set  approximation,  enhancing  the  original  PBnB  algorithm  significantly.  This  multi-level  PBnB  algorithm  employs  importance  sampling  to  strategically  identify  promising  subregions  of  the  partitioned  search  space.  Its  performance  is  further  enhanced  by  integrating  Gaussian  processes  as  a  surrogate  model  to  guide  local  sampling  exploration.  During  the  process,  the  target  level  set  is  approximated  by  classifying  subregions  as  either  pruned  (no  intersection  with  target  level  set),  maintained  (contained  within  target  level  set),  or  undecided.  This  enhanced  version  of  the  PBnB  algorithm  introduces  an  adaptive  sampling  probability  that  strategically  directs  samples  to  the  most  promising  regions.  Since  this  importance  sampling  results  in  dependency  amongst  samples,  we  have  applied  a  statistical  method  to  construct  a  confidence  interval  on  the  probability  of  correctly  classifying  a  subregion  as  pruned  or  maintained.  The  contribution  to  the  interplay  of  optimization  and  machine  learning  is  the  local  sampling  within  each  subregion.  We  incorporate  Gaussian  processes  and  regularized  quadratic  regression,  common  and  successful  methods  for  prediction  in  machine  learning  for  level-set  approximation.  The  analysis  of  this  multi-level  PBnB  algorithm  quantifies  the  quality  of  the  level  set  approximation  by  deriving  probability  bounds  on  the  volume  of  incorrectly  pruned  or  maintained  regions,  which  accounts  for  the  effects  of  importance  sampling.To  address  the  challenges  of  high  dimensionality,  this  dissertation  introduces  the  Branching  Adaptive  Surrogate  Search  Optimization  (BASSO)  framework  that  conceptualizes  the  use  of  branching  and  surrogate  modeling  for  black-box  optimization.  BASSO  generalizes  multi-level  PBnB  and  adapts  it  to  optimization  as  opposed  to  level-set  approximation.  A  finite-time  analysis  of  BASSO  proves  that  the  expected  number  of  BASSO  function  evaluations  needed  to  first  sample  a  point  in  the  global  optimum  vicinity  is  linear  in  dimension  given  that  two  strong  assumptions  are  satisfied.  The  desired  linearity  result  suggests  an  algorithm  that  is  scalable  to  high  dimensions  in  theory.  This  research  explores  several  variations  to  implement  BASSO  and  partially  satisfy  the  two  assumptions.  In  this  part  of  the  research,  methods  used  in  machine  learning  are  introduced  to  improve  the  chance  of  sampling  in  the  improving  region.  One  BASSO  implementation  incorporates  Gaussian  processes  as  a  surrogate  model  and  a  second  uses  regularized  quadratic  regression  as  a  surrogate  model  to  predict  where  to  sample  next  within  a  subregion.  The  synergy  between  the  surrogate  model  and  the  optimization  algorithm  work  together  to  balance  exploration  and  exploitation.  The  local  surrogate  model  guides  sampling  within  a  subregion,  while  the  adaptive  subregion  probabilities  identify  promising  subregions.  This  interplay  allows  the  system  to  effectively  use  both  local  subregion  information  (from  the  surrogate  model)  and  global  information  (from  the  adaptive  probabilities)  to  improve  its  search.Numerical  experiments  of  BASSO  provide  insights  into  the  gap  between  theoretical  ideal  performance  and  the  performance  of  proposed  implementation  with  machine  learning  techniques  to  tackling  high  dimensional  black-box  problem.  This  dissertation  also  explores  partitioning,  clustering  and  decomposition  as  techniques  for  high-dimensional  optimization.While  the  proposed  multi-level  PBnB  algorithm  and  BASSO  framework  focus  on  balancing  exploration  and  exploitation  for  deterministic,  black-box  optimization,  this  dissertation  also  considers  estimation  when  dealing  with  a  noisy  black-box  function.  The  dissertation  extends  the  Single  Observation  Search  Algorithm  (SOSA)  by  incorporating  insight  from  machine  learning  techniques.  The  original  neighborhood  averaging  technique  for  noisy  function  value  estimation  of  SOSA  is  replaced  with  a  new  quadratic  regression,  extending  the  concept  of  basis  expansion.  Complementing  this,  the  search  strategy  is  improved  by  incorporating  optimistic  sampling,  a  concept  drawn  from  reinforcement  learning,  to  more  effectively  guide  exploration.  This  research  contributes  to  the  interplay  of  optimization  and  machine  learning  by  providing  quadratic  regression  as  an  estimation  method  within  a  single-observation  scheme  and  achieving  convergence  results  while  accounting  for  dependency  between  samples.  Theoretical  convergence  results  for  this  SOSA  extension  are  presented,  and  numerical  experiments  on  benchmark  problems  demonstrate  performance  gains  over  the  baseline  algorithm.Finally,  this  dissertation  identifies  possible  applications  and  future  research  opportunities  arising  from  the  interplay  of  optimization  and  machine  learning  in  solving  large-scale  black-box  noisy  functions.  This  includes  a  discussion  of  quantum  computing  approaches  for  global  optimization,  considering  both  their  theoretical  promises  and  practical  challenges.
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■653    ▼aGaussian  process
■653    ▼aHigh-dimensional  optimization
■653    ▼aMachine  learning
■653    ▼aQuantum  computing
■653    ▼aPartitioning
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■71020▼aUniversity  of  Washington▼bIndustrial  and  Systems  Engineering.
■7730  ▼tDissertations  Abstracts  International▼g87-03B.
■790    ▼a0250
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359436▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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