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Hajin Shim

6 accepted papers

2024

CloudFixer: Test-Time Adaptation for 3D Point Clouds via Diffusion-Guided Geometric Transformation

ECCV 2024poster

"3D point clouds captured from real-world sensors frequently encompass noisy points due to various obstacles, such as occlusion, limited resolution, and variations in scale. These challenges hinder the deployment of pre-trained point cloud recognition models trained on clean point clouds, leading to…

2023

Diffusion Video Autoencoders: Toward Temporally Consistent Face Video Editing via Disentangled Video Encoding

CVPR 2023poster

Inspired by the impressive performance of recent face image editing methods, several studies have been naturally proposed to extend these methods to the face video editing task. One of the main challenges here is temporal consistency among edited frames, which is still unresolved. To this end, we pr…

Cited by 34SourcePDFScholar
2023

Fighting Fire with Fire: Contrastive Debiasing without Bias-free Data via Generative Bias-transformation

ICML 2023poster

Deep neural networks (DNNs), despite their ability to generalize with over-capacity networks, often rely heavily on the malignant bias as shortcuts instead of task-related information for discriminative tasks. This can lead to poor performance on real-world inputs, particularly when the majority of…

Cited by 7SourcePDFScholar
2022

Graph Transplant: Node Saliency-Guided Graph Mixup with Local Structure Preservation

AAAI 2022technical

Graph-structured datasets usually have irregular graph sizes and connectivities, rendering the use of recent data augmentation techniques, such as Mixup, difficult. To tackle this challenge, we present the first Mixup-like graph augmentation method called Graph Transplant, which mixes irregular grap…

Cited by 67SourcePDFScholar
2018

Joint Active Feature Acquisition and Classification with Variable-Size Set Encoding

NeurIPS 2018poster

We consider the problem of active feature acquisition where the goal is to sequentially select the subset of features in order to achieve the maximum prediction performance in the most cost-effective way at test time. In this work, we formulate this active feature acquisition as a jointly learning p…