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Three Essays in Applied Statistics and Methodology
Three Essays in Applied Statistics and Methodology
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152757
- ISBN
- 9798346568308
- DDC
- 310
- 저자명
- Ruan, Lisa L.
- 서명/저자
- Three Essays in Applied Statistics and Methodology
- 발행사항
- [Sl] : Harvard University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 138 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-05, Section: B.
- 주기사항
- Advisor: Shephard, Neil.
- 학위논문주기
- Thesis (Ph.D.)--Harvard University, 2024.
- 초록/해제
- 요약In the increasingly complex data landscape of the modern world, the growing diversity of data has opened up exciting new avenues of research. This thesis presents three forays into areas representing different challenges in the realms of time series, text, and image data across an array of applications. • Chapter 1 proposes a Bayesian algorithm for learning about the memory distribution of a superposition of autoregressions. The parameterization of this model structure is delicate and experiments suggest a solution which can be deployed in practice. The methods are illustrated by an analysis of U.S. inflation data.• Chapter 2 examines the integration of text and traditional covariates into a heterogenous dataset within the Concise Comparative Summaries framework. We address key methodological challenges, including optimization strategies, penalization, handling missing data, and reconciling scaling differences. We further compare our integrated approach with text-only and covariate-only analyses, and illustrate its effectiveness through a comprehensive analysis of a heterogeneous medical dataset focused on frequent users of intensive care units.• Chapter 3 leverages machine learning methodology on a dataset of over 200,000 pottery fragment images from the Sanxingdui Bronze culture to achieve precise chronological classification and uncover an anomalous excavation site. This work highlights the untapped potential of applying modern data-driven methods to traditional archaeological practices in demonstrating the value of previously overlooked pottery fragments in archaeological research.
- 일반주제명
- Statistics
- 일반주제명
- Computer science
- 일반주제명
- Information technology
- 키워드
- Autoregressions
- 키워드
- Penalization
- 키워드
- Machine learning
- 기타저자
- Harvard University Statistics
- 기본자료저록
- Dissertations Abstracts International. 86-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211152757
■006m o d
■007cr#unu||||||||
■020 ▼a9798346568308
■035 ▼a(MiAaPQ)AAI31555948
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a310
■1001 ▼aRuan, Lisa L.▼0(orcid)0009-0007-2494-2130
■24510▼aThree Essays in Applied Statistics and Methodology
■260 ▼a[Sl]▼bHarvard University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a138 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-05, Section: B.
■500 ▼aAdvisor: Shephard, Neil.
■5021 ▼aThesis (Ph.D.)--Harvard University, 2024.
■520 ▼aIn the increasingly complex data landscape of the modern world, the growing diversity of data has opened up exciting new avenues of research. This thesis presents three forays into areas representing different challenges in the realms of time series, text, and image data across an array of applications. • Chapter 1 proposes a Bayesian algorithm for learning about the memory distribution of a superposition of autoregressions. The parameterization of this model structure is delicate and experiments suggest a solution which can be deployed in practice. The methods are illustrated by an analysis of U.S. inflation data.• Chapter 2 examines the integration of text and traditional covariates into a heterogenous dataset within the Concise Comparative Summaries framework. We address key methodological challenges, including optimization strategies, penalization, handling missing data, and reconciling scaling differences. We further compare our integrated approach with text-only and covariate-only analyses, and illustrate its effectiveness through a comprehensive analysis of a heterogeneous medical dataset focused on frequent users of intensive care units.• Chapter 3 leverages machine learning methodology on a dataset of over 200,000 pottery fragment images from the Sanxingdui Bronze culture to achieve precise chronological classification and uncover an anomalous excavation site. This work highlights the untapped potential of applying modern data-driven methods to traditional archaeological practices in demonstrating the value of previously overlooked pottery fragments in archaeological research.
■590 ▼aSchool code: 0084.
■650 4▼aStatistics
■650 4▼aComputer science
■650 4▼aInformation technology
■653 ▼aBayesian algorithm
■653 ▼aU.S. inflation data
■653 ▼aAutoregressions
■653 ▼aPenalization
■653 ▼aMachine learning
■690 ▼a0463
■690 ▼a0489
■690 ▼a0984
■690 ▼a0800
■71020▼aHarvard University▼bStatistics.
■7730 ▼tDissertations Abstracts International▼g86-05B.
■790 ▼a0084
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163817▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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