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Nicholas Mohammad

4 accepted papers

2025

Soft Actor-Critic-Based Control Barrier Adaptation for Robust Autonomous Navigation in Unknown Environments

ICRA 2025

Motion planning failures during autonomous navigation often occur when safety constraints are either too conservative, leading to deadlocks, or too liberal, resulting in collisions. To improve robustness, a robot must dynamically adapt its safety constraints to ensure it reaches its goal while balan

Cited by 4SourcecodeScholar
2024

A GP-based Robust Motion Planning Framework for Agile Autonomous Robot Navigation and Recovery in Unknown Environments

ICRA 2024poster

For autonomous mobile robots, uncertainties in the environment and system model can lead to failure in the motion planning pipeline, resulting in potential collisions. In order to achieve a high level of robust autonomy, these robots should be able to proactively predict and recover from such failur…

Cited by 1SourceScholar
2023

A Model Predictive Path Integral Method for Fast, Proactive, and Uncertainty-Aware UAV Planning in Cluttered Environments

IROS 2023poster

Current motion planning approaches for autonomous mobile robots often assume that the low level controller of the system is able to track the planned motion with very high accuracy. In practice, however, tracking error can be affected by many factors, and could lead to potential collisions when the…

Cited by 12SourceScholar
2022

A Robust and Fast Occlusion-based Frontier Method for Autonomous Navigation in Unknown Cluttered Environments

IROS 2022poster

Navigation through unknown, cluttered environments is a fundamental and challenging task for autonomous vehicles as they must deal with a myriad of obstacle configurations typically unknown a priori. Challenges arise because obstacles of unknown shapes and dimensions can create occlusions limiting s…

Cited by 6SourceScholar