Changyeon Kim

changyeon.kim [AT] kaist.ac.kr

Hello. I am a PhD student at KAIST, advised by Jinwoo Shin and Kimin Lee. Currently, I am working closely with Honglak Lee at University of Michigan.

My research interest lies on applying RL algorithms to challenging tasks where reward specification is burdensome. To this end, I am focusing on designing RL algorithms to tackle practical and challenging scenarios like unseen novel environments and environments without well-shaped rewards. I am also broadly interested in RL researches including RL with representation learning, language‐conditioned RL, and offline RL.

Prior to my graduate studies, I was a machine learning engineer at Recommendation Team of Kakao. Before that, I completed my BS in Computer Science at KAIST.


News

Sep 22, 2023 ARP has been accepted to NeurIPS 2023. See you in New Orleans :us:!
Jun 19, 2023 I will attend ICML 2023 in person for presenting workshop paper (ARP). Feel free to contact to meet or chat in Hawaii, USA :us:.
Jan 21, 2023 Preference Transformer is accepted to ICLR2023 :smile:. Hope to see you in Kigali, Rwanda :rwanda:!

Publications

  1. Guide Your Agent with Adaptive Multimodal Rewards
    In Conference on Neural Information Processing Systems (NeurIPS), 2023
    Previously accepted to ICML 2023 Workshop on New Frontiers in Learning, Control, and Dynamical Systems
  2. Preference Transformer: Modeling Human Preferences using Transformers for RL
    In International Conference on Learning Representations (ICLR), 2023
    (*: equal contribution)
  3. Dynamics-Augmented Decision Transformer for Offline Dynamics Generalization
    Changyeon Kim*Junsu Kim*Younggyo SeoKimin LeeHonglak Lee, and Jinwoo Shin
    In Neural Information Processing Systems Workshop on Offline Reinforcement Learning, 2022
    (*: equal contribution)

Work Experience


Recommendation Team, Kakao
Machine Learning Engineer (Dec 2020 ~ Feb 2022)

Data Science Group, Institute of Basic Science
Resarch Intern advised by Prof. Meeyoung Cha (Jul 2019 - Nov 2020)


Honors and Awards

Travel Award ($1,000),  International Conference on Learning Representations (ICLR), 2023
Dean's List,  KAIST Department of Engineering, 2019
Recipient ($5,000),  Line Scholarship, 2019
Recipient,  National Science and Engineering Scholarship, Korea Ministry of Science and ICT, 2017 - 2019
Recipient ($3,000),  Kwanjeong Scholarship, 2017


Academic Services

Workshop Reviewer:  Frontiers4LCD@ICML'23