Singularity Avoidance
Singularity avoidance research focuses on mitigating the problematic effects of singularities—points in a system where mathematical models break down or become ill-conditioned—across diverse applications. Current efforts concentrate on developing algorithms and models, including neural networks and reinforcement learning techniques, to either detect singularities in data or actively avoid them during real-time control, particularly in robotics and diffusion models. These advancements improve the robustness and reliability of various systems, ranging from robotic rehabilitation devices to image generation processes, by ensuring safe and predictable operation even near singular configurations. The impact extends to enhancing the accuracy and efficiency of inverse problems and improving the performance of machine learning algorithms in challenging scenarios.
Papers
Admittance Controller Complemented with Real-time Singularity Avoidance for Rehabilitation Parallel Robots
Jose L. Pulloquinga, Rafael J. Escarabajal, Marina Valles, Miguel Diaz-Rodriguez, Vicente Mata, Angel Valera
A Type II Singularity Avoidance Algorithm for Parallel Manipulators using Output Twist Screws
Jose L. Pulloquinga, Rafael J. Escarabajal, Angel Valera, Marina Valles, Vicente Mata