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Youngjo Lee

3 accepted papers

2026

PAGTM: Position and Attention-Guided Token Merging for Efficient Visual Place Recognition

ICRA 2026poster

Recent advances in Vision Transformers (ViTs) have significantly improved the performance of Visual Place Recognition (VPR), but their high computational cost—due to the quadratic complexity of self-attention—limits their practical deployment in real-world scenarios. To address this challenge, we pr…

Cited by 0Scholar
2023

H-Likelihood Approach to Deep Neural Networks with Temporal-Spatial Random Effects for High-Cardinality Categorical Features

ICML 2023oral

Deep Neural Networks (DNNs) are one of the most powerful tools for prediction, but many of them implicitly assume that the data are statistically independent. However, in the real world, it is common for large-scale data to be clustered with temporal-spatial correlation structures. Variational appro…

Cited by 5SourcePDFScholar
2022

Iteratively Selecting an Easy Reference Frame Makes Unsupervised Video Object Segmentation Easier

AAAI 2022technical

Unsupervised video object segmentation (UVOS) is a per-pixel binary labeling problem which aims at separating the foreground object from the background in the video without using the ground truth (GT) mask of the foreground object. Most of the previous UVOS models use the first frame or the entire v…

Cited by 44SourcePDFScholar