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Joonmyung Choi

8 accepted papers

2026

DocPrune: Efficient Document Question Answering via Background, Question, and Comprehension-aware Token Pruning

CVPR 2026

Recent advances in vision-language models have shown strong performance across diverse multimodal tasks, including document question answering that leverages structured visual cues from text, tables, and figures. However, unlike natural images, document images contain large backgrounds and only spar

Cited by 0SourceScholar
2025

EfficientViM: Efficient Vision Mamba with Hidden State Mixer based State Space Duality

CVPR 2025poster

For the deployment of neural networks in resource-constrained environments, prior works have built lightweight architectures with convolution and attention for capturing local and global dependencies, respectively. Recently, the state space model (SSM) has emerged as an effective operation for globa…

2025

Representation Shift: Unifying Token Compression with FlashAttention

ICCV 2025poster

Transformers have demonstrated remarkable success across vision, language, and video. Yet, increasing task complexity has led to larger models and more tokens, raising the quadratic cost of self-attention and the overhead of GPU memory access. To reduce the computation cost of self-attention, prior…

2024

Multi-criteria Token Fusion with One-step-ahead Attention for Efficient Vision Transformers

CVPR 2024poster

Vision Transformer (ViT) has emerged as a prominent backbone for computer vision. For more efficient ViTs recent works lessen the quadratic cost of the self-attention layer by pruning or fusing the redundant tokens. However these works faced the speed-accuracy trade-off caused by the loss of informa…

2024

vid-TLDR: Training Free Token Merging for Light-weight Video Transformer

CVPR 2024poster

Video Transformers have become the prevalent solution for various video downstream tasks with superior expressive power and flexibility. However these video transformers suffer from heavy computational costs induced by the massive number of tokens across the entire video frames which has been the ma…

2023

MELTR: Meta Loss Transformer for Learning To Fine-Tune Video Foundation Models

CVPR 2023poster

Foundation models have shown outstanding performance and generalization capabilities across domains. Since most studies on foundation models mainly focus on the pretraining phase, a naive strategy to minimize a single task-specific loss is adopted for fine-tuning. However, such fine-tuning methods d…

2022

TokenMixup: Efficient Attention-guided Token-level Data Augmentation for Transformers

NeurIPS 2022accept

Mixup is a commonly adopted data augmentation technique for image classification. Recent advances in mixup methods primarily focus on mixing based on saliency. However, many saliency detectors require intense computation and are especially burdensome for parameter-heavy transformer models. To this e…

2022

Video-Text Representation Learning via Differentiable Weak Temporal Alignment

CVPR 2022poster

Learning generic joint representations for video and text by a supervised method requires a prohibitively substantial amount of manually annotated video datasets. As a practical alternative, a large-scale but uncurated and narrated video dataset, HowTo100M, has recently been introduced. But it is st…

Cited by 25PDFcodeScholar