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Domain Adaptive Bootstrap Aggregating

delete2025-01-01
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PRE
AI
M
Meimei Liu
D
David B. Dunson
DOI:10.1109/TSP.2025.3608642delete
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Abstract

Abstract

En 中文
When there is a distributional shift between data used to train a predictive algorithm and current data, performance can suffer. This is known as the domain adaptation problem. Bootstrap aggregating, or bagging, is a popular method for improving the stability of predictive algorithms, while reducing variance and protecting against overfitting. This article proposes a domain adaptive bagging method coupled with a new iterative nearest neighbor sampler. The key idea is to draw bootstrap samples from the training data in such a manner that their distribution equals that of the new testing data. The proposed approach provides a general ensemble framework that can be applied to arbitrary classifiers in complex domains, including manifolds. We further modify the method to allow for anomalous samples in the test data corresponding to outliers in the training data. Theoretical support is provided and the approach is compared to alternatives in simulations and real-data applications.
Keywords:
Bagging
classification
domain adaptation
ensemble learning
generalizability

Journal

I
IEEE Transactions on Signal Processing
IF:
5.8
Papers:
318
Citations:
0

Organization

D
Duke University
Scholars:
6.3W
Papers: 5.7W
Citations: 6.5W
D
department of statistics
Scholars:
581
Papers: 369
Citations: 4
Cited Papers

Cited Papers

No cited papers available