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Learning Through the Lens of Computation
Learning Through the Lens of Computation
Learning Through the Lens of Computation

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자료유형  
 학위논문 서양
최종처리일시  
20250211151956
ISBN  
9798382806686
DDC  
004
저자명  
Peng, Binghui.
서명/저자  
Learning Through the Lens of Computation
발행사항  
[Sl] : Columbia University, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
245 p
주기사항  
Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
주기사항  
Advisor: Papadimitriou, Christos;Chen, Xi.
학위논문주기  
Thesis (Ph.D.)--Columbia University, 2024.
초록/해제  
요약One of the major mysteries in science is the remarkable success of machine learning. While its empirical achievements have captivated the field, our theoretical comprehension lags significantly behind. This thesis seeks for advancing our theoretical understanding of learning and intelligence from a computational perspective. By studying fundamental learning, optimization and decision making tasks, we aspire to shed lights on the impact of computation for artificial intelligence.The first part of this thesis concerns the space resource needed for learning. By studying the fundamental role of memory for continual learning, online decision making and convex optimization, we find both continual learning and efficient convex optimization require a lot of memory; while for decision making, exponential savings are possible. More concretely, • We prove there is no memory deduction in continual learning, unless the continual learner takes multiple passes over the sequence of environments; • We prove in order to optimize a convex function in the most iteration efficient way, an algorithm must use a quadratic amount of space;• We show polylogarithmic space is sufficient for making near optimal decisions in an oblivious adversary environment; in a sharp contrast, a quadratic saving is both sufficient and necessary to achieve vanishing regret in an adaptive adversarial environment.The second part of this thesis uses learning as a tool, and resolves a series of long-standing open questions in algorithmic game theory. By giving an exponential faster no-swap-regret learning algorithm, we obtain algorithms that achieve near-optimal computation/communication/iteration complexity for computing an approximate correlated equilibrium in a normal-form game, and we give the first polynomial-time algorithm for computing approximate normal-form correlated equilibria in imperfect information games (including Bayesian and extensive-form games).
일반주제명  
Computer science
일반주제명  
Computer engineering
키워드  
Algorithm
키워드  
Complexity
키워드  
Game theory
키워드  
Machine learning
키워드  
Decision making
기타저자  
Columbia University Computer Science
기본자료저록  
Dissertations Abstracts International. 85-12B.
전자적 위치 및 접속  
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■1001  ▼aPeng,  Binghui.
■24510▼aLearning  Through  the  Lens  of  Computation
■260    ▼a[Sl]▼bColumbia  University▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a245  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-12,  Section:  B.
■500    ▼aAdvisor:  Papadimitriou,  Christos;Chen,  Xi.
■5021  ▼aThesis  (Ph.D.)--Columbia  University,  2024.
■520    ▼aOne  of  the  major  mysteries  in  science  is  the  remarkable  success  of  machine  learning.  While  its  empirical  achievements  have  captivated  the  field,  our  theoretical  comprehension  lags  significantly  behind.  This  thesis  seeks  for  advancing  our  theoretical  understanding  of  learning  and  intelligence  from  a  computational  perspective.  By  studying  fundamental  learning,  optimization  and  decision  making  tasks,  we  aspire  to  shed  lights  on  the  impact  of  computation  for  artificial  intelligence.The  first  part  of  this  thesis  concerns  the  space  resource  needed  for  learning.  By  studying  the  fundamental  role  of  memory  for  continual  learning,  online  decision  making  and  convex  optimization,  we  find  both  continual  learning  and  efficient  convex  optimization  require  a  lot  of  memory;  while  for  decision  making,  exponential  savings  are  possible.  More  concretely, •  We  prove  there  is  no  memory  deduction  in  continual  learning,  unless  the  continual  learner  takes  multiple  passes  over  the  sequence  of  environments; •  We  prove  in  order  to  optimize  a  convex  function  in  the  most  iteration  efficient  way,  an  algorithm  must  use  a  quadratic  amount  of  space;•  We  show  polylogarithmic  space  is  sufficient  for  making  near  optimal  decisions  in  an  oblivious  adversary  environment;  in  a  sharp  contrast,  a  quadratic  saving  is  both  sufficient  and  necessary  to  achieve  vanishing  regret  in  an  adaptive  adversarial  environment.The  second  part  of  this  thesis  uses  learning  as  a  tool,  and  resolves  a  series  of  long-standing  open  questions  in  algorithmic  game  theory.  By  giving  an  exponential  faster  no-swap-regret  learning  algorithm,  we  obtain  algorithms  that  achieve  near-optimal  computation/communication/iteration  complexity  for  computing  an  approximate  correlated  equilibrium  in  a  normal-form  game,  and  we  give  the  first  polynomial-time  algorithm  for  computing  approximate  normal-form  correlated  equilibria  in  imperfect  information  games  (including  Bayesian  and  extensive-form  games).
■590    ▼aSchool  code:  0054.
■650  4▼aComputer  science
■650  4▼aComputer  engineering
■653    ▼aAlgorithm
■653    ▼aComplexity
■653    ▼aGame  theory
■653    ▼aMachine  learning
■653    ▼aDecision  making
■690    ▼a0984
■690    ▼a0464
■690    ▼a0800
■71020▼aColumbia  University▼bComputer  Science.
■7730  ▼tDissertations  Abstracts  International▼g85-12B.
■790    ▼a0054
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17162298▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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