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Geometry-Inspired Sampling Algorithms and Random Graphs- [electronic resource]
Geometry-Inspired Sampling Algorithms and Random Graphs - [electronic resource]
Geometry-Inspired Sampling Algorithms and Random Graphs- [electronic resource]

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자료유형  
 학위논문파일 국외
최종처리일시  
20240214100448
ISBN  
9798380381086
DDC  
004
저자명  
Yang, Elizabeth.
서명/저자  
Geometry-Inspired Sampling Algorithms and Random Graphs - [electronic resource]
발행사항  
[S.l.]: : University of California, Berkeley., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(112 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
주기사항  
Advisor: Rao, Satish.
학위논문주기  
Thesis (Ph.D.)--University of California, Berkeley, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약High-dimensional expansion, a generalization of graph expansion to higher-order edges, has recently garnered significant attention in the theoretical computer science community for the additional boost they give in applications like error-correction and approximate sampling. In this thesis, we explore two problems related to high-dimensional expansion, using tools from the geometry of polynomials as well as high-dimensional convex geometry.First, we study approximate sampling from discrete distributions. The framework for sampling obtained from high-dimensional expansion provides both a natural set of random walks to use in MCMC algorithms, as well as a set of tools for their analysis. We show that the geometric properties (e.g. log-concavity) of a polynomial derived from the distribution allows us to speed up the implementations of these random walks.Next, we study a random graph model called the "random geometric graph," with an eventual goal of understanding its modeling capabilities as well as its high-dimensional expansion properties. Along the way, we prove new results about distinguishing the random geometric graph model from the Erdos-Renyi model, and develop a new geometric toolkit for analyzing these graphs.
일반주제명  
Computer science.
일반주제명  
Mathematics.
일반주제명  
Applied mathematics.
키워드  
High-dimensional expansion
키워드  
High-dimensional geometry
키워드  
Random graph
키워드  
Geometric properties
키워드  
Random walks
기타저자  
University of California, Berkeley Computer Science
기본자료저록  
Dissertations Abstracts International. 85-03B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
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■00520240214100448
■006m          o    d                
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■020    ▼a9798380381086
■035    ▼a(MiAaPQ)AAI30491848
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a004
■1001  ▼aYang,  Elizabeth.
■24510▼aGeometry-Inspired  Sampling  Algorithms  and  Random  Graphs▼h[electronic  resource]
■260    ▼a[S.l.]:▼bUniversity  of  California,  Berkeley.  ▼c2023
■260  1▼aAnn  Arbor  :▼bProQuest  Dissertations  &  Theses,  ▼c2023
■300    ▼a1  online  resource(112  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-03,  Section:  B.
■500    ▼aAdvisor:  Rao,  Satish.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Berkeley,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■520    ▼aHigh-dimensional  expansion,  a  generalization  of  graph  expansion  to  higher-order  edges,  has  recently  garnered  significant  attention  in  the  theoretical  computer  science  community  for  the  additional  boost  they  give  in  applications  like  error-correction  and  approximate  sampling.  In  this  thesis,  we  explore  two  problems  related  to  high-dimensional  expansion,  using  tools  from  the  geometry  of  polynomials  as  well  as  high-dimensional  convex  geometry.First,  we  study  approximate  sampling  from  discrete  distributions.  The  framework  for  sampling  obtained  from  high-dimensional  expansion  provides  both  a  natural  set  of  random  walks  to  use  in  MCMC  algorithms,  as  well  as  a  set  of  tools  for  their  analysis.  We  show  that  the  geometric  properties  (e.g.  log-concavity)  of  a  polynomial  derived  from  the  distribution  allows  us  to  speed  up  the  implementations  of  these  random  walks.Next,  we  study  a  random  graph  model  called  the  "random  geometric  graph,"  with  an  eventual  goal  of  understanding  its  modeling  capabilities  as  well  as  its  high-dimensional  expansion  properties.  Along  the  way,  we  prove  new  results  about  distinguishing  the  random  geometric  graph  model  from  the  Erdos-Renyi  model,  and  develop  a  new  geometric  toolkit  for  analyzing  these  graphs.
■590    ▼aSchool  code:  0028.
■650  4▼aComputer  science.
■650  4▼aMathematics.
■650  4▼aApplied  mathematics.
■653    ▼aHigh-dimensional  expansion
■653    ▼aHigh-dimensional  geometry
■653    ▼aRandom  graph
■653    ▼aGeometric  properties
■653    ▼aRandom  walks
■690    ▼a0984
■690    ▼a0405
■690    ▼a0364
■71020▼aUniversity  of  California,  Berkeley▼bComputer  Science.
■7730  ▼tDissertations  Abstracts  International▼g85-03B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0028
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16932362▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

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