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Nadun Ranawaka Arachchige

5 accepted papers

2025

Joint Model-based Model-free Diffusion for Planning with Constraints

CoRL 2025poster

Model-free diffusion planners have shown great promise for robot motion planning, but practical robotic systems often require combining them with model-based optimization modules to enforce constraints, such as safety. Na\"ively integrating these modules presents compatibility challenges when diffus…

Cited by 9SourceScholar
2025

RAIL: Reachability-Aided Imitation Learning for Safe Policy Execution

ICRA 2025

Imitation learning (IL) has shown great success in learning complex robot manipulation tasks. However, there remains a need for practical safety methods to justify widespread deployment. In particular, it is important to certify that a system obeys hard constraints on unsafe behavior in settings whe

Cited by 3SourcecodeScholar
2025

SAIL: Faster-than-Demonstration Execution of Imitation Learning Policies

CoRL 2025oral

Offline Imitation Learning (IL) methods such as Behavior Cloning are effective at acquiring complex robotic manipulation skills. However, existing IL-trained policies are confined to execute the task at the same speed as shown in demonstration data. This limits the task throughput of a robotic…

Cited by 0SourcecodeScholar
2025

What Matters in Learning from Large-Scale Datasets for Robot Manipulation

ICLR 2025poster

Imitation learning from large multi-task demonstration datasets has emerged as a promising path for building generally-capable robots. As a result, 1000s of hours have been spent on building such large-scale datasets around the globe. Despite the continuous growth of such efforts, we still lack a sy…

Cited by 3SourcePDFScholar
2021

The Utility of Explainable AI in Ad Hoc Human-Machine Teaming

NeurIPS 2021poster

Recent advances in machine learning have led to growing interest in Explainable AI (xAI) to enable humans to gain insight into the decision-making of machine learning models. Despite this recent interest, the utility of xAI techniques has not yet been characterized in human-machine teaming. Importan…