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Multi-Level Latent Variable Models for Integrating Multiple Phenotypes for Mental Disorders
Multi-Level Latent Variable Models for Integrating Multiple Phenotypes for Mental Disorder...
Multi-Level Latent Variable Models for Integrating Multiple Phenotypes for Mental Disorders

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20250211152653
ISBN  
9798383588581
DDC  
574
저자명  
Zhao, Yinjun.
서명/저자  
Multi-Level Latent Variable Models for Integrating Multiple Phenotypes for Mental Disorders
발행사항  
[Sl] : Columbia University, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
106 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-02, Section: B.
주기사항  
Advisor: Wang, Yuanjia;Liu, Ying.
학위논문주기  
Thesis (Ph.D.)--Columbia University, 2024.
초록/해제  
요약The overarching goal of this dissertation is to integrate heterogeneous data for the estimation of disease coheritability and subtyping. Chapter 2 focuses on the significance and estimation of heritability and coheritability, which quantify the proportion of phenotypic variation attributable to genetic factors and the genetic correlations between different traits, respectively. To achieve this, we develop robust statistical methods based on estimating equations that account for familial correlations and the computational challenges posed by large pedigrees and extensive datasets. Our methods are evaluated through simulations, demonstrating satisfactory consistency and robust inference properties. Compared to simpler methods performing separate trait analysis, our approaches show a greater power through joint analysis of multiple traits. An application to the analysis of heritability and coheritability in electronic health record (EHR) data reveals substantial genetic correlations between mental disorders and metabolic/endocrine measurements, suggesting shared genetic influences that warrant further investigation. These findings have implications for understanding these conditions' etiology, diagnosis, and treatment.Chapters 3 and 4 focus on the importance of patient subtyping for personalized mental health care, particularly relevant to the substantial variability observed in mental disorders. Chapter 3 develops methods for subtyping patients with mental disorders using various data modalities and variational inference. We propose latent mixture models inspired by the Item Response Theory to handle both binary and continuous data. We also introduce Black Box Variational Inference (BBVI) algorithms to overcome the challenges of numeric integration in nonlinear models. Our numerical experiments validate the proposed methods, demonstrating that variance-controlling techniques improve convergence speed and reduce iteration variance. However, the proposed algorithm encounters limitations with latent mixture models containing binary modalities due to approximations used in non-conjugate posterior distributions resulting from the non-exponential family likelihood function.Chapter 4 investigates multi-modal integration techniques for subtyping patients using data from the Adolescent Brain Cognitive Development (ABCD) study. We introduce a Bayesian hierarchical joint model with latent variables and utilize Polya-Gamma augmentation for posterior approximation, which enables efficient Gibbs sampling and accurate estimation of model parameters. Extensive simulations confirm the consistency of estimators and the prediction accuracy of our method. Applying these methods to patient clustering in the ABCD study provides information for identifying potential clinical subtypes within mental health, which can inform the development of targeted psychological and educational interventions, ultimately improving mental health outcomes.
일반주제명  
Biostatistics
일반주제명  
Systematic biology
일반주제명  
Statistics
일반주제명  
Mental health
키워드  
Latent mixture models
키워드  
Integrative analysis
키워드  
Coheritability
키워드  
Multi-modality
키워드  
Disease subtyping
키워드  
Variational inference
기타저자  
Columbia University Biostatistics
기본자료저록  
Dissertations Abstracts International. 86-02B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aZhao,  Yinjun.
■24510▼aMulti-Level  Latent  Variable  Models  for  Integrating  Multiple  Phenotypes  for  Mental  Disorders
■260    ▼a[Sl]▼bColumbia  University▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a106  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-02,  Section:  B.
■500    ▼aAdvisor:  Wang,  Yuanjia;Liu,  Ying.
■5021  ▼aThesis  (Ph.D.)--Columbia  University,  2024.
■520    ▼aThe  overarching  goal  of  this  dissertation  is  to  integrate  heterogeneous  data  for  the  estimation  of  disease  coheritability  and  subtyping.  Chapter  2  focuses  on  the  significance  and  estimation  of  heritability  and  coheritability,  which  quantify  the  proportion  of  phenotypic  variation  attributable  to  genetic  factors  and  the  genetic  correlations  between  different  traits,  respectively.  To  achieve  this,  we  develop  robust  statistical  methods  based  on  estimating  equations  that  account  for  familial  correlations  and  the  computational  challenges  posed  by  large  pedigrees  and  extensive  datasets.  Our  methods  are  evaluated  through  simulations,  demonstrating  satisfactory  consistency  and  robust  inference  properties.  Compared  to  simpler  methods  performing  separate  trait  analysis,  our  approaches  show  a  greater  power  through  joint  analysis  of  multiple  traits.  An  application  to  the  analysis  of  heritability  and  coheritability  in  electronic  health  record  (EHR)  data  reveals  substantial  genetic  correlations  between  mental  disorders  and  metabolic/endocrine  measurements,  suggesting  shared  genetic  influences  that  warrant  further  investigation.  These  findings  have  implications  for  understanding  these  conditions'  etiology,  diagnosis,  and  treatment.Chapters  3  and  4  focus  on  the  importance  of  patient  subtyping  for  personalized  mental  health  care,  particularly  relevant  to  the  substantial  variability  observed  in  mental  disorders.  Chapter  3  develops  methods  for  subtyping  patients  with  mental  disorders  using  various  data  modalities  and  variational  inference.  We  propose  latent  mixture  models  inspired  by  the  Item  Response  Theory  to  handle  both  binary  and  continuous  data.  We  also  introduce  Black  Box  Variational  Inference  (BBVI)  algorithms  to  overcome  the  challenges  of  numeric  integration  in  nonlinear  models.  Our  numerical  experiments  validate  the  proposed  methods,  demonstrating  that  variance-controlling  techniques  improve  convergence  speed  and  reduce  iteration  variance.  However,  the  proposed  algorithm  encounters  limitations  with  latent  mixture  models  containing  binary  modalities  due  to  approximations  used  in  non-conjugate  posterior  distributions  resulting  from  the  non-exponential  family  likelihood  function.Chapter  4  investigates  multi-modal  integration  techniques  for  subtyping  patients  using  data  from  the  Adolescent  Brain  Cognitive  Development  (ABCD)  study.  We  introduce  a  Bayesian  hierarchical  joint  model  with  latent  variables  and  utilize  Polya-Gamma  augmentation  for  posterior  approximation,  which  enables  efficient  Gibbs  sampling  and  accurate  estimation  of  model  parameters.  Extensive  simulations  confirm  the  consistency  of  estimators  and  the  prediction  accuracy  of  our  method.  Applying  these  methods  to  patient  clustering  in  the  ABCD  study  provides  information  for  identifying  potential  clinical  subtypes  within  mental  health,  which  can  inform  the  development  of  targeted  psychological  and  educational  interventions,  ultimately  improving  mental  health  outcomes.
■590    ▼aSchool  code:  0054.
■650  4▼aBiostatistics
■650  4▼aSystematic  biology
■650  4▼aStatistics
■650  4▼aMental  health
■653    ▼aLatent  mixture  models
■653    ▼aIntegrative  analysis
■653    ▼aCoheritability
■653    ▼aMulti-modality
■653    ▼aDisease  subtyping
■653    ▼aVariational  inference
■690    ▼a0308
■690    ▼a0423
■690    ▼a0347
■690    ▼a0463
■71020▼aColumbia  University▼bBiostatistics.
■7730  ▼tDissertations  Abstracts  International▼g86-02B.
■790    ▼a0054
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17163321▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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