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A Fractional adaptive PID (FPID) controller for a robot manipulator will be proposed. The PID parameters have been optimized by Genetic algorithm. The proposed controller is found robust by means of simulation in a tracking job. The…

Adaptation and Self-Organizing Systems · Physics 2012-06-12 H. Delavari , R. Ghaderi , N. A. Ranjbar , S. H. HosseinNia , S. Momani

Dynamic optimization of nonlinear chemical systems -- such as batch reactors -- should be applied online, and the suitable control taken should be according to the current state of the system rather than the current time instant. The recent…

Systems and Control · Computer Science 2019-04-16 Abdelrahman ElMezain , Mohamed Saleh , Jie Zhang , Ahmed Soliman , Seif Fateen

In this paper, two Q-learning (QL) methods are proposed and their convergence theories are established for addressing the model-free optimal control problem of general nonlinear continuous-time systems. By introducing the Q-function for…

Systems and Control · Computer Science 2014-10-14 Biao Luo , Derong Liu , Tingwen Huang

Formalisms based on quantum theory have been used in Cognitive Science for decades due to their descriptive features. A quantum-like (QL) approach provides descriptive features such as state superposition and probabilistic interference…

Robotics · Computer Science 2020-06-05 Davide Lanza , Paolo Solinas , Fulvio Mastrogiovanni

Reinforcement learning (RL) is a class of artificial intelligence algorithms being used to design adaptive optimal controllers through online learning. This paper presents a model-free, real-time, data-efficient Q-learning-based algorithm…

Systems and Control · Electrical Eng. & Systems 2023-10-11 Ali Aalipour , Alireza Khani

Aerial robots can enhance their safe and agile navigation in complex and cluttered environments by efficiently exploiting the information collected during a given task. In this paper, we address the learning model predictive control problem…

Robotics · Computer Science 2024-01-10 Guanrui Li , Alex Tunchez , Giuseppe Loianno

Safety concerns during the operation of legged robots must be addressed to enable their widespread use. Machine learning-based control methods that use model-based constraints provide promising means to improve robot safety. This study…

Robotics · Computer Science 2023-03-07 Berk Tosun , Evren Samur

Q-learning is a regression-based approach that is widely used to formalize the development of an optimal dynamic treatment strategy. Finite dimensional working models are typically used to estimate certain nuisance parameters, and…

Methodology · Statistics 2020-03-30 Ashkan Ertefaie , James R. McKay , David Oslin , Robert L. Strawderman

Linear regression is a data analysis technique, which is categorized as supervised learning. By utilizing known data, we can predict unknown data. Recently, researchers have explored the use of quantum annealing (QA) to perform linear…

Quantum Physics · Physics 2024-10-14 Asuka Koura , Takashi Imoto , Katsuki Ura , Yuichiro Matsuzaki

This paper presents a Q-learning framework for learning optimal locomotion gaits in robotic systems modeled as coupled rigid bodies. Inspired by prevalence of periodic gaits in bio-locomotion, an open loop periodic input is assumed to (say)…

Systems and Control · Electrical Eng. & Systems 2019-10-02 Tixian Wang , Amirhossein Taghvaei , Prashant G. Mehta

This study suggests a novel tracking method that employs three Pixy2 sensors to identify the desired line trajectories instead of traditional perceiving means. Firstly, the kinematic model of the mobile robot is derived from the information…

Robotics · Computer Science 2023-10-02 Xuan Quang Ngo , Tri Duc Tran , Huy Hung Nguyen , Van Dong Nguyen , Van Tu Duong , Tan Tien Nguyen

Navigating rugged landscapes poses significant challenges for legged locomotion. Multi-legged robots (those with 6 and greater) offer a promising solution for such terrains, largely due to their inherent high static stability, resulting…

Robotics · Computer Science 2024-09-17 Juntao He , Baxi Chong , Zhaochen Xu , Sehoon Ha , Daniel I. Goldman

This paper addresses the challenges of distributed formation control in multiple mobile robots, introducing a novel approach that enhances real-world practicability. We first introduce a distributed estimator using a variable structure and…

Robotics · Computer Science 2024-03-26 Zhe Xu , Tao Yan , Simon X. Yang , S. Andrew Gadsden , Mohammad Biglarbegian

The control and modeling of robot dynamics have increasingly adopted model-free control strategies using machine learning. Given the non-linear elastic nature of bionic robotic systems, learning-based methods provide reliable alternatives…

Robotics · Computer Science 2024-10-08 Po-Yu Hsieh , June-Hao Hou

The main drawbacks of input-output linearizing controllers are the need for precise dynamics models and not being able to account for input constraints. Model uncertainty is common in almost every robotic application and input saturation is…

Systems and Control · Electrical Eng. & Systems 2020-05-05 Fernando Castañeda , Mathias Wulfman , Ayush Agrawal , Tyler Westenbroek , Claire J. Tomlin , S. Shankar Sastry , Koushil Sreenath

Learning has propelled the cutting edge of performance in robotic control to new heights, allowing robots to operate with high performance in conditions that were previously unimaginable. The majority of the work, however, assumes that the…

Robotics · Computer Science 2018-03-13 Christopher D. McKinnon , Angela P. Schoellig

Ensuring safety via safety filters in real-world robotics presents significant challenges, particularly when the system dynamics is complex or unavailable. To handle this issue, learning-based safety filters recently gained popularity,…

Robotics · Computer Science 2024-12-02 Guo Ning Sue , Yogita Choudhary , Richard Desatnik , Carmel Majidi , John Dolan , Guanya Shi

Q-learning suffers from overestimation bias, because it approximates the maximum action value using the maximum estimated action value. Algorithms have been proposed to reduce overestimation bias, but we lack an understanding of how bias…

Machine Learning · Computer Science 2021-08-10 Qingfeng Lan , Yangchen Pan , Alona Fyshe , Martha White

Neuro-electronic hybrid promises to bring up a model architecture for computing. Such computing architecture could help to bring the power of biological connection and electronic circuits together for better computing paradigm. Such…

Neurons and Cognition · Quantitative Biology 2017-02-14 Sayan Biswas

Experimental demonstration of complex robotic behaviors relies heavily on finding the correct controller gains. This painstaking process is often completed by a domain expert, requiring deep knowledge of the relationship between parameter…

Robotics · Computer Science 2022-03-03 Noel Csomay-Shanklin , Maegan Tucker , Min Dai , Jenna Reher , Aaron D. Ames