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Domain Adaptation through Optimal Tr...

Gao, Keyue.

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Domain Adaptation through Optimal Transport with Class Imbalance.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Domain Adaptation through Optimal Transport with Class Imbalance./
作者:	Gao, Keyue.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	71 p.
附註:	Source: Dissertations Abstracts International, Volume: 80-05, Section: B.
Contained By:	Dissertations Abstracts International80-05B.
標題:	Applied Mathematics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10751110
ISBN:	9780438634558

Domain Adaptation through Optimal Transport with Class Imbalance.
Gao, Keyue.

Domain Adaptation through Optimal Transport with Class Imbalance. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 71 p.

Source: Dissertations Abstracts International, Volume: 80-05, Section: B.

Thesis (Ph.D.)--New York University, 2018.

This item must not be sold to any third party vendors.

In modern data analytics, one often faces situations where the training data used to build a model and the target data to which the model is applied have different but related probability distributions. The problem of learning effectively in such scenarios is known as domain adaptation. In this paper, we propose a new framework to solve the domain adaptation problem based on optimal transport. Our approach removes two assumptions underlying prior related work. First, we allow class imbalance: that the class ratios in the training and the target data be different. Second, we allow that only a subdomain of the training data be matched to the target data, a relaxation that we name optimal partial transport. We introduce various techniques in optimal transport to address these two situations. We also present a novel regularization method which promotes small variance within each class. Numerical experiments are conducted on both synthetic and real world data, showing that our approach is effective and robust with fewer assumptions made on data than with conventional methods.

ISBN: 9780438634558Subjects--Topical Terms:

1669109
Applied Mathematics.

Domain Adaptation through Optimal Transport with Class Imbalance.
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