Hojun (Eric) Choi

About Me

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I am a first-year Ph.D. student at KAIST AI, advised by Prof. Hyunjung (Kate) Shim. Before joining KAIST, I conducted research with Prof. Bin Ran at the CAVH Research Group at the University of Wisconsin–Madison and with Prof. U Kang at the Data Mining Lab at Seoul National University. I also worked with Prof. Insik Shin at FLUIZ and Dr. Jinhan Lee at NAVER LABS.

News

• [Conference] Our paper, “Open-Vocabulary BEV Segmentation with 3D-Aware Geometric Constraints,” has been accepted to ECCV 2026.
• [Conference] Our paper, “CoT-PL: Chain-of-Thought Pseudo-Labeling for Open-Vocabulary Object Detection,” has been accepted to ECCV 2026.
• [Workshop] Our paper, “CoT-PL: Chain-of-Thought Pseudo-Labeling for Open-Vocabulary Object Detection,” has been accepted to the 2nd Workshop on Multimodal Spatial Intelligence at CVPR 2026.
• [Award] Honored to have received the Best Poster Award at IPIU 2026.

Publications

ECCV

Open-Vocabulary BEV Segmentation with 3D-Aware Geometric Constraints

Hojun Choi, Seulbin Hwang, Dae Jung Kim, Kisung Kim, Hyunjung Shim, and Jinhan Lee

European Conference on Computer Vision (ECCV), 2026.

ECCV CVPRW

CoT-PL: Chain-of-Thought Pseudo-Labeling for Open-Vocabulary Object Detection

Hojun Choi, Youngsun Lim, Jaeyo Shin, and Hyunjung Shim

2nd Workshop on Multimodal Spatial Intelligence @ CVPR (CVPRW), 2026.
European Conference on Computer Vision (ECCV), 2026.

PDF Code BibTeX

Preprint

SUPER-AD: Semantic Uncertainty-aware Planning for End-to-End Robust Autonomous Driving

Wonjeong Ryu, Seungjun Yu, Seokha Moon, Hojun Choi, Junsung Park, Jinkyu Kim, and Hyunjung Shim

Preprint, 2025.

PDF BibTeX

AAAI

Evaluating Image Hallucination in Text-to-Image Generation with Question-Answering

Youngsun Lim*, Hojun Choi*, and Hyunjung Shim (*Equal contribution)

AAAI Conference on Artificial Intelligence (AAAI), 2025.

PDF Code Project Page BibTeX Oral Presentation

Preprint

Sampling Bag of Views for Open-Vocabulary Object Detection

Hojun Choi, Junsuk Choe, and Hyunjung Shim

Preprint, 2024.

PDF BibTeX

MobiCom

MobileGPT: Augmenting LLM with Human-like App Memory for Mobile Task Automation

Sunjae Lee, Junyoung Choi, Jungjae Lee, Munim Hasan Wasi, Hojun Choi, Steven Y. Ko, Sangeun Oh, and Insik Shin

ACM International Conference on Mobile Computing and Networking (MobiCom), 2024.

PDF Code BibTeX

ICLR

Accurate Retraining-free Pruning for Pre-trained Encoder-based Language Models

Seungcheol Park, Hojun Choi, and U Kang

International Conference on Learning Representations (ICLR), 2024.

PDF Code BibTeX

Education

Research Experience

• Research Intern, NAVER LABS Corp., South Korea, May 2025 – Nov. 2025
• Research Intern, FLUIZ AI, South Korea, Sep. 2023 – Feb. 2024
• Research Intern, Data Mining Lab, South Korea, Jan. 2023 – Jul. 2023
• Undergraduate Research Intern, CAVH Research Group, USA, Sep. 2022 – Dec. 2022

Awards

• Best Poster Award, Image Processing and Image Understanding (IPIU), 2026
• Oral Presentation, Image Processing and Image Understanding (IPIU), 2025
• Top 10%, Autonomous Sensor Antenna Prediction Competition, LG AI Research, 2022
• Honorable Mention, UPL Hackathon, 2022
• Dean's List Recipient, University of Wisconsin–Madison, Every Semester Attended