Hello, I'm Jihwan Yoon

I am a researcher in robot design optimization. I am a member of the Robot Intelligence Lab (RILAB) at Korea University.

I received my bachelor’s degree from Korea University in 2024.

My current research interests include humanoid kinematics and learning-based design optimization.

News


Publications

LEGO: Latent-space Exploration for Geometry-aware Optimization of Humanoid Kinematic Design

LEGO: Latent-space Exploration for Geometry-aware Optimization of Humanoid Kinematic Design

ICRA, 2026

Learns a compact, geometry-preserving latent space of humanoid upper-body designs from existing mechanical designs and uses human motion data - via motion retargeting and Procrustes analysis - as the optimization objective, enabling automated discovery of new robot kinematics with minimal human design input.

Learning Social Navigation from Positive and Negative Demonstrations and Rule-Based Specifications

Learning Social Navigation from Positive and Negative Demonstrations and Rule-Based Specifications

Chanwoo Kim, Jihwan Yoon, Hyeonseong Kim, Taemoon Jeong, Changwoo Yoo, Seungbeen Lee, Soohwan Byeon, Hoon Chung, Matthew Pan, Jean Oh, Kyungjae Lee, Sungjoon Choi
ICRA, 2026

Social navigation framework that learns a density-based reward from positive and negative demonstrations and augments it with rule-based objectives for obstacle avoidance and goal reaching. A sampling-based lookahead controller produces safe yet adaptive supervisory actions, which are distilled into a compact student policy suitable for real-time operation with uncertainty estimates.

Hierarchical Vision Language Action Model Using Success and Failure Demonstrations

Hierarchical Vision Language Action Model Using Success and Failure Demonstrations

CoRL 2025 Workshop on Safe and Robust Robot Learning

Hierarchical vision-language-action model that learns from both success and failure demonstrations: a high-level System 2 performs feasibility-guided tree search over scene-graph subgoals using success/failure probabilities, while a low-level System 1 executes the selected actions - turning failure data into a structured signal for robust manipulation.

CoRe: A Hybrid Approach of Contact-Aware Optimization and Learning for Humanoid Robot Motions

CoRe: A Hybrid Approach of Contact-Aware Optimization and Learning for Humanoid Robot Motions

Taemoon Jeong, Yoonbyung Chai, Sol Choi, Jaewan Bak, Chanwoo Kim, Jihwan Yoon, Yisoo Lee, Jongwon Lee, Kyungjae Lee, Joohyung Kim, Sungjoon Choi
Humanoids, 2025

An automated pipeline that converts text-generated human motions into physically executable humanoid motions: text-to-motion generation, robot-specific retargeting, optimization-based motion refinement, and a contact-aware RL phase - reducing foot sliding, unnatural floating, and excessive joint accelerations before RL training.