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Advances in Non-stationary Sequential Decision-Making
Advances in Non-stationary Sequential Decision-Making
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152130
- ISBN
- 9798383530573
- DDC
- 310
- 저자명
- Suk, Joseph.
- 서명/저자
- Advances in Non-stationary Sequential Decision-Making
- 발행사항
- [Sl] : Columbia University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 359 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-01, Section: B.
- 주기사항
- Advisor: Kpotufe, Samory.
- 학위논문주기
- Thesis (Ph.D.)--Columbia University, 2024.
- 초록/해제
- 요약We study the problem of sequential decision-making (e.g. multi-armed bandits, contextual bandits, reinforcement learning) under changing environments, or distribution shifts. Ideally, one aims to automatically adapt/self-tune to unknown changes in distribution, and restart exploration as needed. While recent theoretical breakthroughs show this is possible in a broad sense, such works contend that the learner should restart procedures upon experiencing any change leading to worst-case (regret) rates. This leaves open whether faster rates are possible, adaptively, if few changes in distribution are actually severe, e.g., involve no change in best action.This thesis initiates a broad research program giving positive answers to these open questions across several instances. In particular, we begin at non-stationary bandits and show a much weaker notion of change can be adapted to, which can yield significantly faster rates than previously known, whether as expressed in terms of number of best action switches-for which no adaptive procedure was known, or in terms of previously studied variation or smoothness measures. We then generalize these results to non-parametric contextual bandits and dueling bandits. As a result, we substantially improve the theoretical state-of-the-art performance guarantees for these problems and, in many cases, tightly characterize the statistical limits of sequential decision-making under changing environments.
- 일반주제명
- Statistics
- 일반주제명
- Computer science
- 키워드
- Minimax
- 기타저자
- Columbia University Statistics
- 기본자료저록
- Dissertations Abstracts International. 86-01B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211152130
■006m o d
■007cr#unu||||||||
■020 ▼a9798383530573
■035 ▼a(MiAaPQ)AAI31483147
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a310
■1001 ▼aSuk, Joseph.
■24510▼aAdvances in Non-stationary Sequential Decision-Making
■260 ▼a[Sl]▼bColumbia University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a359 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-01, Section: B.
■500 ▼aAdvisor: Kpotufe, Samory.
■5021 ▼aThesis (Ph.D.)--Columbia University, 2024.
■520 ▼aWe study the problem of sequential decision-making (e.g. multi-armed bandits, contextual bandits, reinforcement learning) under changing environments, or distribution shifts. Ideally, one aims to automatically adapt/self-tune to unknown changes in distribution, and restart exploration as needed. While recent theoretical breakthroughs show this is possible in a broad sense, such works contend that the learner should restart procedures upon experiencing any change leading to worst-case (regret) rates. This leaves open whether faster rates are possible, adaptively, if few changes in distribution are actually severe, e.g., involve no change in best action.This thesis initiates a broad research program giving positive answers to these open questions across several instances. In particular, we begin at non-stationary bandits and show a much weaker notion of change can be adapted to, which can yield significantly faster rates than previously known, whether as expressed in terms of number of best action switches-for which no adaptive procedure was known, or in terms of previously studied variation or smoothness measures. We then generalize these results to non-parametric contextual bandits and dueling bandits. As a result, we substantially improve the theoretical state-of-the-art performance guarantees for these problems and, in many cases, tightly characterize the statistical limits of sequential decision-making under changing environments.
■590 ▼aSchool code: 0054.
■650 4▼aStatistics
■650 4▼aComputer science
■653 ▼aMinimax
■653 ▼aMulti-armed bandits
■653 ▼aNon-parametric statistics
■653 ▼aStatistical learning theory
■653 ▼aReinforcement learning
■690 ▼a0463
■690 ▼a0984
■690 ▼a0800
■71020▼aColumbia University▼bStatistics.
■7730 ▼tDissertations Abstracts International▼g86-01B.
■790 ▼a0054
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163056▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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