Jangkyu Ju

Ph.D. Student in Computer Science

GT Visualization Lab, School of Interactive Computing, Georgia Institute of Technology

Research & Professional Experience

Georgia Institute of Technology

Atlanta, GA
Graduate Student Researcher GT Visualization Lab Advisor: Cindy Xiong Bearfield
2026 - Present
  • Research on human-AI interaction and AI interface design, with a focus on how information visualization choices shape people's cognition, perception, and trust when interacting with AI systems

Hyundai Motor Group

Seoul, Korea
Data Scientist Data Insight Team, ICT Division
2025 - 2026
  • Cross-domain data analysis (e.g., vehicle, customer, sales, production), metrics development, dashboard visualization
  • Optimization and automation of ML models and data pipelines for scalable deployment
Research Engineer Infotainment Development Center, Advanced Vehicle Platform (AVP) Division
2023 - 2025
  • Large-scale in-vehicle infotainment (IVI) data analysis for modeling user behavior and metrics development
  • Machine Learning model and Human-Machine Interface design for personalized IVI recommendation systems

Korea University

Seoul, Korea
Graduate Student Researcher Human Performance Lab, School of Psychology Advisor: Yang-Seok Cho
2021 - 2023
  • Visual complexity of automotive head-up displays and attentional tunneling in driving
  • Exploration for reward information in modulating Value-Driven Attentional Capture (VDAC)
  • Computational simulation of associative learning models in VDAC
Research Assistant Human Performance Lab, School of Psychology
2020
  • Behavioral experiments (keypress, mouse-tracking, neuroimaging), statistical analysis

L'Oréal Korea

Seoul, Korea
Data Analyst Intern Human Resources
2019
  • Company-wide data analysis to support HR and operations decisions

Education

Korea University M.S. in Behavioral and Cognitive Neuroscience School of Psychology GPA: 4.5/4.5 - Advisor: Dr. Yang-Seok Cho
University of Toronto Exchange Student Department of Psychology
Korea University B.A. in Psychology, Business Administration Double Major GPA: 4.09/4.5

Publications (* co-first authors)

  1. Lee, J.*, Lee, N.*, Ju, J.*, Chae, J., Park, J., Ryu, H. S., & Cho, Y. S. (2024). Visual complexity of head-up display in automobiles modulates attentional tunneling. Human Factors, 66(7), 1879-1892.

  2. Ju, J., Lee, E., & Park, S. (2024). Comparative analysis of ensemble machine learning models for personalized in-vehicle infotainment recommendation systems. Adjunct Proceedings of the 16th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, 45-50.

  3. Ju, J., & Cho, Y. S. (2023). The modulation of value-driven attentional capture by exploration for reward information. Journal of Experimental Psychology: Learning, Memory, and Cognition, 49(2), 181-197.

  4. Jeong, J. H., Ju, J., Kim, S., Choi, J. S., & Cho, Y. S. (2023). Value-driven attention and associative learning models: a computational simulation analysis. Psychonomic Bulletin & Review, 30(5), 1689-1706.

Conference & Workshop Presentations

  1. Ju, J., Lee, E., & Park, S. (2024). Comparative analysis of ensemble machine learning models for personalized in-vehicle infotainment recommendation systems. Poster presented at 16th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, Stanford, USA.

  2. Ju, J., & Cho, Y. S. (2022). Distinctive effects of predictiveness and uncertainty of reward in value-driven attentional capture. Poster presented at 63rd Annual Meeting of the Psychonomic Society, Boston, USA.

  3. Lee, J., Lee, N., Ju, J., Chae, J., Park, J., Ryu, H. S., & Cho, Y. S. (2022). Simple is the best! Visual complexity of head-up display in automobiles modulates attentional tunneling and driving performance. Poster presented at 13th International Conference of the Applied Human Factors and Ergonomics, New York, USA.

  4. Ju, J., & Cho, Y. S. (2022). The effects of predictiveness and uncertainty of reward on value-driven attentional capture. Poster presented at 2022 Annual Conference of the Korean Society of Cognitive and Biological Psychology, Virtual.

  5. Lee, N., Lee, J., Ju, J., Chae, J., Park, J., & Ryu, H. S. (2022). Simple is the best!: Visual complexity of head-up display modulates driving performance. Talk presented at 2022 Annual Conference of the Korean Society of Cognitive and Biological Psychology, Virtual. Award: Outstanding Presentation Award

  6. Ju, J., & Cho, Y. S. (2021). Distinctive effects of entropy and variance of reward in value-driven attentional capture. Poster presented at 62nd Annual Meeting of the Psychonomic Society, Virtual.

  7. Ju, J., & Cho, Y. S. (2021). Impact of reward information entropy and variance on value-driven attentional capture. Talk presented at 2021 Annual Conference of the Korean Society of Cognitive and Biological Psychology, Virtual.

Awards & Scholarship

2021 - 2023
Scholarship for Graduate Researcher Brain Korea 21, Ministry of Education, Korea
2022
Outstanding Presentation Award Korean Society of Cognitive and Biological Psychology
2021
Award of Excellence & Scholarship Research Challenger Program (RCP), Center for Teaching and Learning (CTL), Korea University
2018
Dean's List Korea University
2018
Academic Excellence Award Korea University
2018 - 2020
Family Scholarship Korea University
2018 - 2020
Semester High Honors Korea University
2015
Semester Honors Korea University
2018
Army Commendation Medal (ARCOM) United States Army
2018
Certificate of Achievement (COA) United States Army
2018
Exemplary Soldier Award Republic of Korea Army

Teaching Experience

Teaching Assistant User Experience and Psychology (PSYC493) Undergraduate course, Korea University, School of Psychology Lecturer: Dr. Yang-Seok Cho
Teaching Assistant Emotion and Cognition (PSY414) Graduate course, Korea University, School of Psychology Lecturer: Dr. Yang-Seok Cho

Invited Talks

Cognitive Psychology and In-Vehicle Infotainment Systems Psychological Research and Applications, Korea University, School of Psychology Seoul, Korea
Cognitive Psychology and In-Vehicle Infotainment Systems Psychological Research and Applications, Korea University, School of Psychology Seoul, Korea
Cognitive Psychology and In-Vehicle Infotainment Systems Cognitive Engineering, Department of Psychology, Chungbuk National University Virtual Talk

Skills

Data & Cloud
Python SQL R Apache Spark Airflow PostgreSQL MySQL BigQuery Hadoop/HDFS Kafka AWS GCP Tableau Qlik Sense MicroStrategy Metabase
ML & MLOps
Scikit-learn TensorFlow PyTorch Keras MLflow Kubeflow Docker CI/CD
Experimentation
Behavioral task design and programming Experimental design & analysis Eye-tracking Driving Simulator PsychoPy
Front-End & Web Integration
HTML/CSS JavaScript React Django Figma Unity 3D