International Publications

[2025]

• Imputing Multi-Agent Trajectories from Event and Snapshot Data in Soccer
  [Paper][Code]
  Geonhee Jo, Miru Hong, Han-Jun Choi, Pascal Bauer and Sang-Ki Ko.
  CIKM 2025 (BK21 Top-tier international conference, third author)

• Trajectory Imputation in Multi-Agent Sports with Derivative-Accumulating Self-Ensemble
  [Paper] [Code][Poster][Slide]
  Han-Jun Choi*, Hyunsung Kim*, Minho Lee, Chang Jo Kim, Jinsung Yoon, and Sang-Ki Ko.
  ECML PKDD 2025 (BK 21 excellent international conference)

[2023]

• Ball trajectory inference from Multi-Agent Sports Contexts Using Set Transformer and Hierarchical Bi-LSTM
  [Paper] [Code] [Video][Poster][Slide]
  Hyunsung Kim, Han-Jun Choi, Chang Jo Kim, Jinsung Yoon, and Sang-Ki Ko.
  KDD 2023 (BK21 Top-tier international conference)

Domestic Publications

[2025]

• Multimodal Sentiment Analysis under Incomplete Modalities with Missing Text Localization and Confidence-Aware Fusion
  Han-Jun Choi, Byunggill Joe, and Jin Yea Jang
  KIBME 2025, Best Paper Award 🎖

[2024]

• Transformer-Based Multi-Agent Trajectory Imputation Model using Permutation Equivariance
  Han-Jun Choi, Park Hyun Woo, and Sang-Ki Ko
  KCTP 2024

• Analysis of Missing Modality Problems with Korean Multimodal Sentiment Data
  Han-Jun Choi,  Saim Shin,  and Jin Yea Jang
  HCLT 2024

[2023]

• Deep-learning-based Multi-Agent Trajectory Imputation
  Han-Jun Choi, Park Hyun Woo, and Sang-Ki Ko
  KCC 2023, Excellent Paper Award 🎖

[2022]

• Deep learning-based workout classification and repetition counting using IMU sensor data
  Han-Jun Choi, Min Gi Jeon, Su-Hyeon Kim, Sang-Ki Ko, Hak-Gyun Jeong
  ICTC 2022

• Comparison Study of Deep Learning-based Spatiotemporal Data Imputation Algorithms
  Park Hyun Woo, Han-Jun Choi, and Sang-Ki Ko
  KCC 2022

• Optimal Data Generation Strategy for Training RNN-based Time-series Data Imputation Models
  Han-Jun Choi, Park Hyun Woo, and Sang-Ki Ko
  KSC 2022

[2021]

• Deep learning-based time-series wind speed data imputation algorithm using temperature data
  Han-Jun Choi, Sang-Ki Ko, and Jongyeon Lim
  KCC 2021

• Deep learning-based coordinate tracking algorithm for automated soccer video analysis
  Han-Jun choi, Hyun-Woo Park, Hyun-Sung Kim, Dong-Wook Chung, Jinsung Yoon, and Sang-Ki ko
  KSC 2021, Excellent Paper Award 🎖