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Ryan Lee

3 accepted papers

2026

Concept Heterogeneity-aware Representation Steering

ICML 2026poster

Representation steering offers a lightweight mechanism for controlling the behavior of large language models (LLMs) by intervening on internal activations at inference time. Most existing methods rely on a single global steering direction, typically obtained via difference-in-means over contrastive …

Cited by 0SourceScholar
2024

CraterGrader: Autonomous Robotic Terrain Manipulation for Lunar Site Preparation and Earthmoving

RSS 2024poster

Establishing lunar infrastructure is paramount to long-term habitation on the Moon. To meet the demand for future lunar infrastructure development, we present CraterGrader, a novel system for autonomous robotic earthmoving tasks within lunar constraints. In contrast to the current approaches to cons…

Cited by 0SourcePDFScholar
2021

Mobile Robot Yielding Cues for Human-Robot Spatial Interaction

IROS 2021poster

Mobile robots are increasingly being deployed in public spaces such as shopping malls, airports, and urban sidewalks. Most of these robots are designed with human-aware motion planning capabilities but are not designed to communicate with pedestrians. Pedestrians encounter these robots without prior…

Cited by 14SourceScholar