Research and deployment

Selected work

Work on imitation and reward learning, curriculum learning, environment design, and robust learning under distribution shift.

Preprint

Predictive Safety Curricula

Adaptive allocation of RL training experience using predictions of future safety cost. Evaluated in controlled simulation and physical-system deployment.

63% lower shank-collision incidence on ANYmal-D hardware across three matched training seeds.

Reinforcement LearningCurriculum LearningEvaluation
Method and evidence
Preprint

Reward Learning under Distribution Shift

Uses variation across demonstrators as structural information to discourage reward features that fail under dynamics and nuisance shifts.

Evaluated reward transfer across five MuJoCo tasks under dynamics interventions.

Imitation LearningReward LearningCausal Invariance
Method and evidence
Research manuscript

Distribution-Matching Imitation Learning

Develops distribution-matching formulations of imitation learning, including sliced-Wasserstein objectives for occupancy matching.

Remained effective under up to 100× demonstration subsampling on Ant and Humanoid.

Imitation LearningOptimal TransportOccupancy Matching
Method and evidence
Published

FASTRL: Reinforcement Learning in Surgical Digital Twins

Peer-reviewed work on reinforcement-learning benchmarks and assistance policies in surgical digital-twin environments.

Peer-reviewed benchmark and assistance-policy study in surgical digital twins.

Reinforcement LearningInverse Reinforcement LearningDigital Twins
Method and evidence
Manuscript

Hyperbolic Wasserstein Autoencoders

Generative modeling with Wasserstein autoencoders in hyperbolic latent spaces.

Generative ModelingOptimal TransportHyperbolic Geometry
Method and evidence