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Regularized Regression When Boundary Values Are Possible
Regularized Regression When Boundary Values Are Possible
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103129
- ISBN
- 9798315705543
- DDC
- 310
- 저자명
- Li, Tianqi.
- 서명/저자
- Regularized Regression When Boundary Values Are Possible
- 발행사항
- [Sl] : The University of North Carolina at Chapel Hill, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 196 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-11, Section: B.
- 주기사항
- Advisor: Hill, Jonathan B.;Verdier, Valentin.
- 학위논문주기
- Thesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2025.
- 초록/해제
- 요약Regularized estimators have demonstrated outstanding performance across a wide range of applications. In this dissertation, I study regularized estimators when the true value of parameters possibly lies on the boundary of some parameter space. Due to the boundary, the asymptotic distribution of an estimator may no longer be normal. Moreover, regularization can introduce bias to the estimator, which can also interact with the boundary and make the distribution unclear. To understand these issues, in the first part of this dissertation, I derive the asymptotic distributions of the ridge regressor, the least absolute shrinkage and selection operator, and general regularized M-estimators under constraints and fixed-dimensional settings. Since regularization is often applied in high-dimensional contexts, in the second part, I propose a constraint debiased machine learning estimator and a quasi-likelihood ratio test for high-dimensional linear models. In the third part, I focus on the high-dimensional random-coefficient multinomial logit model, commonly used to study discrete choices in economics. I develop a regularized maximum likelihood estimator for simultaneous variable selection, and construct a constrained debiased machine learning estimator to account for both regularization bias and boundary. Finally, I illustrate the impacts of high-dimensional parameters and boundary in an empirical application to soft-drink markets in North Carolina.
- 일반주제명
- Statistics
- 키워드
- Boundary
- 키워드
- Inference
- 키워드
- Lasso
- 키워드
- Mixed logit
- 키워드
- Regularization
- 기타저자
- The University of North Carolina at Chapel Hill Economics
- 기본자료저록
- Dissertations Abstracts International. 86-11B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202103129
■006m o d
■007cr#unu||||||||
■020 ▼a9798315705543
■035 ▼a(MiAaPQ)AAI31939229
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a310
■1001 ▼aLi, Tianqi.
■24510▼aRegularized Regression When Boundary Values Are Possible
■260 ▼a[Sl]▼bThe University of North Carolina at Chapel Hill▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a196 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-11, Section: B.
■500 ▼aAdvisor: Hill, Jonathan B.;Verdier, Valentin.
■5021 ▼aThesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2025.
■520 ▼aRegularized estimators have demonstrated outstanding performance across a wide range of applications. In this dissertation, I study regularized estimators when the true value of parameters possibly lies on the boundary of some parameter space. Due to the boundary, the asymptotic distribution of an estimator may no longer be normal. Moreover, regularization can introduce bias to the estimator, which can also interact with the boundary and make the distribution unclear. To understand these issues, in the first part of this dissertation, I derive the asymptotic distributions of the ridge regressor, the least absolute shrinkage and selection operator, and general regularized M-estimators under constraints and fixed-dimensional settings. Since regularization is often applied in high-dimensional contexts, in the second part, I propose a constraint debiased machine learning estimator and a quasi-likelihood ratio test for high-dimensional linear models. In the third part, I focus on the high-dimensional random-coefficient multinomial logit model, commonly used to study discrete choices in economics. I develop a regularized maximum likelihood estimator for simultaneous variable selection, and construct a constrained debiased machine learning estimator to account for both regularization bias and boundary. Finally, I illustrate the impacts of high-dimensional parameters and boundary in an empirical application to soft-drink markets in North Carolina.
■590 ▼aSchool code: 0153.
■650 4▼aStatistics
■653 ▼aBoundary
■653 ▼aDebiased machine learning
■653 ▼aInference
■653 ▼aLasso
■653 ▼aMixed logit
■653 ▼aRegularization
■690 ▼a0501
■690 ▼a0800
■690 ▼a0463
■71020▼aThe University of North Carolina at Chapel Hill▼bEconomics.
■7730 ▼tDissertations Abstracts International▼g86-11B.
■790 ▼a0153
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357086▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


