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Pyunghwan Ahn

3 accepted papers

2026

Enhancing Mixture-of-Experts Specialization via Cluster-Aware Upcycling

CVPR 2026

Sparse Upcycling provides an efficient way to initialize a Mixture-of-Experts (MoE) model from pretrained dense weights instead of training from scratch. However, since all experts start from identical weights and the router is randomly initialized, the model suffers from expert symmetry and limited

Cited by 0SourceScholar
2021

Progressive Seed Generation Auto-Encoder for Unsupervised Point Cloud Learning

ICCV 2021poster

With the development of 3D scanning technologies, 3D vision tasks have become a popular research area. Owing to the large amount of data acquired by sensors, unsupervised learning is essential for understanding and utilizing point clouds without an expensive annotation process. In this paper, we pro…

Cited by 25PDFScholar
2020

PBP-Net: Point Projection and Back-Projection Network for 3D Point Cloud Segmentation

IROS 2020poster

Following considerable development in 3D scanning technologies, many studies have recently been proposed with various approaches for 3D vision tasks, including some methods that utilize 2D convolutional neural networks (CNNs). However, even though 2D CNNs have achieved high performance in many 2D vi…

Cited by 22SourceScholar