activity
20242026
collaborators

5 papers

cs.AI2026

PCBWorld: A Benchmark Environment for Engine-Grounded PCB Design Automation

Hyungseok Song, Junseok Park, Won-Seok Choi +4

PCB routing is the task of connecting the nets of a board with copper traces under strict design rules, yet learning-based methods still lag behind rule-based routers. We introduce…

cs.CV2025

OBSER: Object-Based Sub-Environment Recognition for Zero-Shot Environmental Inference

Won-Seok Choi, Dong-Sig Han, Suhyung Choi +2

We present the Object-Based Sub-Environment Recognition (OBSER) framework, a novel Bayesian framework that infers three fundamental relationships between sub-environments and their…

cs.LG2025

From Sparse to Dense: Toddler-inspired Reward Transition in Goal-Oriented Reinforcement Learning

Junseok Park, Hyeonseo Yang, Min Whoo Lee +3

Reinforcement learning (RL) agents often face challenges in balancing exploration and exploitation, particularly in environments where sparse or dense rewards bias learning. Biolog…

cs.LG2024

Unveiling the Significance of Toddler-Inspired Reward Transition in Goal-Oriented Reinforcement Learning

Junseok Park, Yoonsung Kim, Hee Bin Yoo +5

Toddlers evolve from free exploration with sparse feedback to exploiting prior experiences for goal-directed learning with denser rewards. Drawing inspiration from this Toddler-Ins…

cs.LG2024

DUEL: Duplicate Elimination on Active Memory for Self-Supervised Class-Imbalanced Learning

Won-Seok Choi, Hyundo Lee, Dong-Sig Han +3

Recent machine learning algorithms have been developed using well-curated datasets, which often require substantial cost and resources. On the other hand, the direct use of raw dat…