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Deep Learning and Tensor Methods for Medical Time-Series
Deep Learning and Tensor Methods for Medical Time-Series
Deep Learning and Tensor Methods for Medical Time-Series

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202105702
ISBN  
9798263308049
DDC  
004
저자명  
Yang, Chaoqi.
서명/저자  
Deep Learning and Tensor Methods for Medical Time-Series
발행사항  
[Sl] : University of Illinois at Urbana-Champaign, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
140 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Sun, Jimeng.
학위논문주기  
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2024.
초록/해제  
요약Time-series data are common in healthcare AI research, and they exhibit diverse modality and complex characteristics, usually leading to various problems in modeling. One large category of medical time-series is the Medical Sequence Data. For example, electronic health records (EHR) are documented on a daily basis, containing all the interactions between patients and clinicians. However, it can be in various formats across different clinical institutes. Medical claims data reflects the patient billing, prescription, vaccination, insurance activities, which could be important for understanding the population level disease effects, such as COVID. However, data processing and modeling could be time confusing on various types of claims data where missing values could exist to add more complexity. Another category of medical time-series is called the Medical Signal Data, like electroencephalogram (EEG). These physiological signal data are collected in high frequency by smart sensory devices that requires advanced signal processing techniques. Usually, sample format mismatching could create a gap between similar datasets and prevent jointly training for large-scale models.My PhD researches mainly focus on building new methodologies for medical time-series on four different problem paradigms: (i) Future Target Prediction that leverages the historical information to predict some future targets of interests, such as heart failure onset prediction; (ii) Underlying Class Prediction that predicts the current disease class or health stages based on the symptom progression or other temporal phenomena; (iii) Missing Imputation that estimate the missing elements based on the surrounding (location-wise) or nearby (time-wise) observed values; (iv) Unsupervised Feature Extraction that learns meaningful embeddings from large unlabeled time-series data. My proposed methods could benefits the health- care domain by providing better and safe prescriptions, making disease prediction model more generalizable to new patients, understanding the spatio-temporal distributions of pediatric respiratory syncytial virus (RSV) disease, accurately estimating the missing values in streaming multi-dimensional medical data, and more.Apart from building strong models, I have also devoted a great amount of time building the health AI system, named PyHealth (https://github.com/sunlabuiuc/PyHealth), which provides various supports for medical time-series (and other modalities), including flexible data processing, medical code mapping if any, easy AI model application and evaluation. The package has attracted increasing attention since 2022 and has gained 868 stars and 27k downloads up to now.
일반주제명  
Computer science
키워드  
Medical time-series
키워드  
PyHealth
키워드  
Healthcare
키워드  
Deep learning
키워드  
Tensor methods
기타저자  
University of Illinois at Urbana-Champaign Computer Science
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■24510▼aDeep  Learning  and  Tensor  Methods  for  Medical  Time-Series
■260    ▼a[Sl]▼bUniversity  of  Illinois  at  Urbana-Champaign▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a140  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  B.
■500    ▼aAdvisor:  Sun,  Jimeng.
■5021  ▼aThesis  (Ph.D.)--University  of  Illinois  at  Urbana-Champaign,  2024.
■520    ▼aTime-series  data  are  common  in  healthcare  AI  research,  and  they  exhibit  diverse  modality  and  complex  characteristics,  usually  leading  to  various  problems  in  modeling.  One  large  category  of  medical  time-series  is  the  Medical  Sequence  Data.  For  example,  electronic  health  records  (EHR)  are  documented  on  a  daily  basis,  containing  all  the  interactions  between  patients  and  clinicians.  However,  it  can  be  in  various  formats  across  different  clinical  institutes.  Medical  claims  data  reflects  the  patient  billing,  prescription,  vaccination,  insurance  activities,  which  could  be  important  for  understanding  the  population  level  disease  effects,  such  as  COVID.  However,  data  processing  and  modeling  could  be  time  confusing  on  various  types  of  claims  data  where  missing  values  could  exist  to  add  more  complexity.  Another  category  of  medical  time-series  is  called  the  Medical  Signal  Data,  like  electroencephalogram  (EEG).  These  physiological  signal  data  are  collected  in  high  frequency  by  smart  sensory  devices  that  requires  advanced  signal  processing  techniques.  Usually,  sample  format  mismatching  could  create  a  gap  between  similar  datasets  and  prevent  jointly  training  for  large-scale  models.My  PhD  researches  mainly  focus  on  building  new  methodologies  for  medical  time-series  on  four  different  problem  paradigms:  (i)  Future  Target  Prediction  that  leverages  the  historical  information  to  predict  some  future  targets  of  interests,  such  as  heart  failure  onset  prediction;  (ii)  Underlying  Class  Prediction  that  predicts  the  current  disease  class  or  health  stages  based  on  the  symptom  progression  or  other  temporal  phenomena;  (iii)  Missing  Imputation  that  estimate  the  missing  elements  based  on  the  surrounding  (location-wise)  or  nearby  (time-wise)  observed  values;  (iv)  Unsupervised  Feature  Extraction  that  learns  meaningful  embeddings  from  large  unlabeled  time-series  data.  My  proposed  methods  could  benefits  the  health-  care  domain  by  providing  better  and  safe  prescriptions,  making  disease  prediction  model  more  generalizable  to  new  patients,  understanding  the  spatio-temporal  distributions  of  pediatric  respiratory  syncytial  virus  (RSV)  disease,  accurately  estimating  the  missing  values  in  streaming  multi-dimensional  medical  data,  and  more.Apart  from  building  strong  models,  I  have  also  devoted  a  great  amount  of  time  building  the  health  AI  system,  named  PyHealth  (https://github.com/sunlabuiuc/PyHealth),  which  provides  various  supports  for  medical  time-series  (and  other  modalities),  including  flexible  data  processing,  medical  code  mapping  if  any,  easy  AI  model  application  and  evaluation.  The  package  has  attracted  increasing  attention  since  2022  and  has  gained  868  stars  and  27k  downloads  up  to  now.
■590    ▼aSchool  code:  0090.
■650  4▼aComputer  science
■653    ▼aMedical  time-series
■653    ▼aPyHealth
■653    ▼aHealthcare
■653    ▼aDeep  learning
■653    ▼aTensor  methods
■690    ▼a0984
■690    ▼a0800
■690    ▼a0769
■71020▼aUniversity  of  Illinois  at  Urbana-Champaign▼bComputer  Science.
■7730  ▼tDissertations  Abstracts  International▼g87-05B.
■790    ▼a0090
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17361078▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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