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An Assortment of Analyses of Optimal Transport Inspired by Domain Adaptation- [electronic resource]
An Assortment of Analyses of Optimal Transport Inspired by Domain Adaptation - [electronic...
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An Assortment of Analyses of Optimal Transport Inspired by Domain Adaptation- [electronic resource]
자료유형  
 학위논문파일 국외
최종처리일시  
20240214095855
ISBN  
9798380618809
DDC  
310
저자명  
Pitcan, Yannik.
서명/저자  
An Assortment of Analyses of Optimal Transport Inspired by Domain Adaptation - [electronic resource]
발행사항  
[S.l.]: : University of California, Berkeley., 2021
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2021
형태사항  
1 online resource(96 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-04, Section: B.
주기사항  
Advisor: Bartlett, Peter.
학위논문주기  
Thesis (Ph.D.)--University of California, Berkeley, 2021.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약This dissertation consists of several papers. First, we start off introducing domain adaptation theory and briefly introduce optimal transport. Such an introduction allows the reader to understand why studying problems in optimal transport theory is so valuable.Our first key result establishes bounds between regularized and unregularized optimal transport. Instead of using an entropic regularization, which is used in the Sinkhorn divergence, we regularize using dual potentials in a reproducing kernel Hilbert space. After this, we derive sample complexity bounds for the regularized optimal transport problem, and we show this is a substantial improvement over unregularized optimal transport. With these two results, one can approximate the theoretical optimal transport distance.Next, we prove the first and second moments of the source and target distributions are enough to determine explicitly the optimal transport map and also that this is a linear mapping. Furthermore, we propose an alternative regularization for the transport map between two distributions.After this, we briefly diverge from optimal transport theory and introduce work on prior elicitation. In particular, we extend a result from on non-asymptotic bounds for maximum likelihood estimators to that for M-estimators. Crucially, we show sufficient assumptions for these to hold and use these to theoretically justify our prior elicitation objective.Last, we return to optimal transport and introduce a variant to compare multiple probability measures, which we call sliced multi-marginal optimal transport. There, we propose a paradigm based on random one-dimensional projections.
일반주제명  
Statistics.
일반주제명  
Computer science.
일반주제명  
Mathematics.
키워드  
Optimal transport
키워드  
Entropic regularization
키워드  
Sample complexity
키워드  
Prior elicitation
키워드  
Dimensional projections
기타저자  
University of California, Berkeley Statistics
기본자료저록  
Dissertations Abstracts International. 85-04B.
기본자료저록  
Dissertation Abstract International
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