Benjamin A. Christie

PhD Candidate, Mechanical Engineering · Virginia Tech

Research Showcase

Slides from recent talks. Click a slide to step through it.

Show and Tell

Unifying Physical Demonstrations and Language Corrections for Neuro-Symbolic Robots

ICRA 2027 submission video · Full screen

Robots learn skills from both physical demonstrations and language corrections. Providing demonstrations before corrections lifts zero-shot success from 45% to 72%.

MEMO

From Local Corrections to Generalized Skills: Improving Neuro-Symbolic Policies with MEMO

IROS 2026 talk · arXiv · PDF · Code · Website · Full screen

Aggregates local language corrections into a skillbook of generalized skills, reaching 88% success on a real robot with about 1.5 corrections per trial.

MCLQ

Safe Interaction via Monte Carlo Linear-Quadratic Games

PhD preliminary exam · arXiv · PDF · Code · Full screen

A stochastic local search for real-time, adjustable safety. In a user study, MCLQ cut collisions without slowing the robot's task.

PRoP

Fine-Tuning Robot Policies While Maintaining User Privacy

PhD preliminary exam · arXiv · PDF · Code · Website · Full screen

A model-agnostic framework that uses keys to transform a policy's intermediate features, so a single network personalizes to multiple users without leaking information between them.