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Sehyun Hwang

6 accepted papers

2024

Active Label Correction for Semantic Segmentation with Foundation Models

ICML 2024poster

Training and validating models for semantic segmentation require datasets with pixel-wise annotations, which are notoriously labor-intensive. Although useful priors such as foundation models or crowdsourced datasets are available, they are error-prone. We hence propose an effective framework of acti…

2023

Active Learning for Semantic Segmentation with Multi-class Label Query

NeurIPS 2023poster

This paper proposes a new active learning method for semantic segmentation. The core of our method lies in a new annotation query design. It samples informative local image regions ($\textit{e.g.}$, superpixels), and for each of such regions, asks an oracle for a multi-hot vector indicating all clas…

2023

Adaptive Superpixel for Active Learning in Semantic Segmentation

ICCV 2023poster

Learning semantic segmentation requires pixel-wise annotations, which can be time-consuming and expensive. To reduce the annotation cost, we propose a superpixel-based active learning (AL) framework, which collects a dominant label per superpixel instead. To be specific, it consists of adaptive supe…

Cited by 12PDFcodeScholar
2022

Combating Label Distribution Shift for Active Domain Adaptation

ECCV 2022poster

"We consider the problem of active domain adaptation (ADA) to unlabeled target data, of which subset is actively selected and labeled given a budget constraint. Inspired by recent analysis on a critical issue from label distribution mismatch between source and target in domain adaptation, we devise…

Cited by 25SourcePDFScholar
2022

Learning Debiased Classifier with Biased Committee

NeurIPS 2022accept

Neural networks are prone to be biased towards spurious correlations between classes and latent attributes exhibited in a major portion of training data, which ruins their generalization capability. We propose a new method for training debiased classifiers with no spurious attribute label. The key i…