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Melkior Ornik

11 accepted papers

2026

Muninn: Your Trajectory Diffusion Model But Faster

RSS 2026poster

Diffusion-based trajectory planners can synthesize rich, multimodal robot motions from demonstrations, but their iterative denoising makes online planning and control prohibitively slow. Existing accelerations either modify the sampler or compress the network–sacrificing plan quality or requiring re…

Cited by 0SourceScholar
2026

Reachable Predictive Control: A Novel Control Algorithm for Nonlinear Systems with Unknown Dynamics and Its Practical Applications

ICRA 2026poster

This paper proposes an algorithm capable of driving a system to follow a piecewise linear trajectory without prior knowledge of the system dynamics. Motivated by a critical failure scenario in which a system can experience an abrupt change in its dynamics, we demonstrate that it is possible to follo…

2025

Autonomous Excavation of Challenging Terrain using Oscillatory Primitives and Adaptive Impedance Control

ICRA 2025

This paper addresses the challenge of autonomous excavation of challenging terrains, in particular those that are prone to jamming and inter-particle adhesion when tackled by a standard penetrate-drag-scoop motion pattern. Inspired by human excavation strategies, our approach incorporates oscillator

Cited by 1SourceScholar
2025

Belief-Conditioned One-Step Diffusion: Real-Time Trajectory Planning with Just-Enough Sensing

CoRL 2025oral

Robots equipped with rich sensor suites can localize reliably in partially-observable environments---but powering every sensor continuously is wasteful and often infeasible. Belief-space planners address this by propagating pose-belief covariance through analytic models and switching sensors heurist…

Cited by 1SourceScholar
2025

Capacity-Aware Planning and Scheduling in Budget-Constrained Multi-Agent MDPs: A Meta-RL Approach

RA-L 2025

We study <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">capacity- and budget-constrained multi-agent MDPs</i> (CB-MA-MDPs), a class that captures many maintenance and scheduling tasks in which each agent can irreversibly fail and a planner must deci

Cited by 0SourceScholar
2025

Motion Planning and Control with Unknown Nonlinear Dynamics through Predicted Reachability

IROS 2025

Autonomous motion planning under unknown nonlinear dynamics presents significant challenges. An agent needs to continuously explore the system dynamics to acquire its properties, such as reachability, in order to guide system navigation adaptively. In this paper, we propose a hybrid planning-control

Cited by 2SourceScholar
2025

TRACE: A Self-Improving Framework for Robot Behavior Forecasting with Vision-Language Models

IROS 2025

Predicting the near-term behavior of a reactive agent is crucial in many robotic scenarios, yet remains challenging when observations of that agent are sparse or intermittent. Vision-Language Models (VLMs) offer a promising avenue by integrating textual domain knowledge with visual cues, but their o

Cited by 5SourcecodeScholar
2024

ComTraQ-MPC: Meta-Trained DQN-MPC Integration for Trajectory Tracking with Limited Active Localization Updates

IROS 2024

Optimal decision-making for trajectory tracking in partially observable, stochastic environments where the number of active localization updates—the process by which the agent obtains its true state information from the sensors—are limited, presents a significant challenge. Traditional methods often

Cited by 4SourcecodeScholar
2024

Weathering Ongoing Uncertainty: Learning and Planning in a Time-Varying Partially Observable Environment

ICRA 2024poster

Optimal decision-making presents a significant challenge for autonomous systems operating in uncertain, stochastic and time-varying environments. Environmental variability over time can significantly impact the system’s optimal decision making strategy for mission completion. To model such environme…

Cited by 3SourceScholar
2023

Few-shot Adaptation for Manipulating Granular Materials Under Domain Shift

RSS 2023poster

Autonomous lander missions on extraterrestrial bodies will need to sample granular material while coping with domain shift, no matter how well a sampling strategy is tuned on Earth. This paper proposes an adaptive scooping strategy that uses deep Gaussian process method trained with meta-learning to…

Cited by 8SourcePDFScholar