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Wooseok Ha

5 accepted papers

2026

Distributionally Robust Classification for Multi-source Unsupervised Domain Adaptation

ICLR 2026poster

Unsupervised domain adaptation (UDA) is a statistical learning problem when the distribution of training (source) data is different from that of test (target) data. In this setting, one has access to labeled data only from the source domain and unlabeled data from the target domain. The central obje…

Cited by 0SourceScholar
2024

Variance-reduced Zeroth-Order Methods for Fine-Tuning Language Models

ICML 2024poster

Fine-tuning language models (LMs) has demonstrated success in a wide array of downstream tasks. However, as LMs are scaled up, the memory requirements for backpropagation become prohibitively high. Zeroth-order (ZO) optimization methods can leverage memory-efficient forward passes to estimate gradie…

Cited by 20SourcePDFScholar
2021

Adaptive wavelet distillation from neural networks through interpretations

NeurIPS 2021poster

Recent deep-learning models have achieved impressive prediction performance, but often sacrifice interpretability and computational efficiency. Interpretability is crucial in many disciplines, such as science and medicine, where models must be carefully vetted or where interpretation is the goal its…

Cited by 51SourcePDFScholar