Robot learning · Autonomous navigation

Andrew Youngmin Lee

Undergraduate Researcher in Robotics & AI

B.S. in Artificial Intelligence · Expected February 2028 · IRASC Lab

I am an undergraduate researcher at Gachon University, where I work on autonomous navigation for mobile robots. My research interests include robot learning, particularly reinforcement learning and vision-language-action (VLA) models.

Publications CV (PDF) Email

Selected publications

All publications

2026

October 2026 · International · Presentation scheduled · International Conference on Control, Automation and Systems (ICCAS 2026) · Conference paper · Poster presentation

Failure-Aware LLM-DWA Replanning for Mobile Robot Navigation in Dynamic Obstacle Environments

Dabin Kim, Youngmin Lee, Jeonghee Seo, Andrew Jaeyong Choi+

Co-defined the follow-up research direction and led the design, execution, and validation of dynamic-obstacle experiments, with the proposed method achieving the highest observed success rate among the tested baselines in a simulated maze (5/10 trials).

* Dabin Kim and Youngmin Lee are co-first authors.

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2026

June 2026 · Domestic · Presented · IEIE 2026 Summer Annual Conference · Conference paper · Poster presentation

Failure-Aware LLM-DWA Replanning for Mobile Robot Navigation

Dabin Kim, Youngmin Lee, Andrew Jaeyong Choi+

Co-defined the research topic and led the design, execution, and validation of the static-obstacle experiments; the method reached the goal in 20/20 trials in a static U-shaped obstacle simulation.

* Dabin Kim and Youngmin Lee are co-first authors.

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Research areas

All research

Robot Learning

Reinforcement Learning · VLA

Reinforcement Learning

I am exploring hybrid policy improvement methods that combine on-policy and off-policy learning.

VLA

I am interested in connecting visual observations and language-based task descriptions to executable robot actions.

Navigation

Path Planning

Failure-Aware Navigation

My navigation research focuses on detecting failures and triggering replanning when a mobile robot cannot make progress.

Path Planning

I am interested in how global planning, waypoint selection, and local control work together during navigation.

Featured projects

All projects

RoboticsSep 2026 – Dec 2026In progress

Prebot

Learning-based robotic manipulation for café order preparation.

A robotic arm service under development that uses visual observations and order information to select and arrange café supplies as item positions change.

View project

RoboticsJul 2026 – Aug 2026

AI Pet-Sitter Robot Service

Context-aware risk reasoning and proactive robotic intervention for pet safety.

A pet-sitter robot designed to anticipate risky pet behavior and intervene before an incident.

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