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This paper presents a novel control algorithm for robotic manipulators in unstructured environments using proximity sensors partially distributed on the platform. The proposed approach exploits arrays of multi zone Time-of-Flight (ToF)…

Robotics · Computer Science 2024-12-09 Simone Borelli , Francesco Giovinazzo , Francesco Grella , Giorgio Cannata

Reinforcement learning-based control policies have been frequently demonstrated to be more effective than analytical techniques for many manipulation tasks. Commonly, these methods learn neural control policies that predict end-effector…

Robotics · Computer Science 2026-04-22 Hunter L. Brown , Geoffrey Hollinger , Stefan Lee

Federated learning is an efficient machine learning tool for dealing with heterogeneous big data and privacy protection. Federated learning methods with regularization can control the level of communications between the central and local…

Machine Learning · Computer Science 2024-11-05 Langming Liu , Dingxuan Zhou

Reinforcement learning requires manual specification of a reward function to learn a task. While in principle this reward function only needs to specify the task goal, in practice reinforcement learning can be very time-consuming or even…

Machine Learning · Computer Science 2020-02-17 Kristian Hartikainen , Xinyang Geng , Tuomas Haarnoja , Sergey Levine

Controlling contact forces during interactions is critical for locomotion and manipulation tasks. While sim-to-real reinforcement learning (RL) has succeeded in many contact-rich problems, current RL methods achieve forceful interactions…

Robotics · Computer Science 2024-05-21 Tifanny Portela , Gabriel B. Margolis , Yandong Ji , Pulkit Agrawal

With robots becoming increasingly prevalent in various domains, it has become crucial to equip them with tools to achieve greater fluency in interactions with humans. One of the promising areas for further exploration lies in human trust. A…

Robotics · Computer Science 2025-04-08 Haley N. Green , Tariq Iqbal

Navigating in off-road environments for wheeled mobile robots is challenging due to dynamic and rugged terrain. Traditional physics-based stability metrics, such as Static Stability Margin (SSM) or Zero Moment Point (ZMP) require knowledge…

Robotics · Computer Science 2025-07-18 Nathaniel Rose , Arif Ahmed , Emanuel Gutierrez-Cornejo , Parikshit Maini

Legged robots have great potential to perform loco-manipulation tasks, yet it is challenging to keep the robot balanced while it interacts with the environment. In this paper we study the use of additional contact points for maximising the…

Robotics · Computer Science 2020-02-26 Wouter Wolfslag , Christopher McGreavy , Guiyang Xin , Carlo Tiseo , Sethu Vijayakumar , Zhibin Li

Reinforcement learning can enable complex, adaptive behavior to be learned automatically for autonomous robotic platforms. However, practical deployment of reinforcement learning methods must contend with the fact that the training process…

Machine Learning · Computer Science 2017-02-07 Gregory Kahn , Adam Villaflor , Vitchyr Pong , Pieter Abbeel , Sergey Levine

Robotics system for rehabilitation of movement disorders and motion assistance are gaining increased intention. In this scenario estimation of ground contact is an active area of research in robotics and healthcare. This article addresses…

Computer Vision and Pattern Recognition · Computer Science 2020-07-10 Muhammad Junaid Umer , Qaiser Riaz

This paper proposes a low-cost six Degree-of-Freedom (6-DOF) navigation system for small aerial robots based on the integration of Global Position System (GPS) receiver with sensors of inertional Microelectromechanical Systems (MEMS). In…

Systems and Control · Electrical Eng. & Systems 2020-08-25 Guiqiu Liao , Jiankang Zhao , Chao Cui , Haihui Long , Jianbin Zhu , Achraf Djerida

We model Human-Robot-Interaction (HRI) scenarios as linear dynamical systems and use Model Predictive Control (MPC) with mixed integer constraints to generate human-aware control policies. We motivate the approach by presenting two…

Human-Computer Interaction · Computer Science 2017-01-17 Steven Jens Jorgensen , Orion Campbell , Travis Llado , Donghyun Kim , Junhyeok Ahn , Luis Sentis

Based on the convex force-motion polynomial model for quasi-static sliding, we derive the kinematic contact model to determine the contact modes and instantaneous object motion on a supporting surface given a position controlled…

Robotics · Computer Science 2017-05-31 Jiaji Zhou , J. Andrew Bagnell , Matthew T. Mason

In this study, seated walk, a movement of walking while sitting on a chair with casters, is realized on a musculoskeletal humanoid from human teaching. The body is balanced by using buttock-contact sensors implemented on the planar…

Robotics · Computer Science 2024-04-02 Kento Kawaharazuka , Kei Okada , Masayuki Inaba

In this work, we build on our method for manipulating unknown objects via contact configuration regulation: the estimation and control of the location, geometry, and mode of all contacts between the robot, object, and environment. We…

Robotics · Computer Science 2023-10-03 Orion Taylor , Neel Doshi , Alberto Rodriguez

Legged robots, specifically quadrupeds, are becoming increasingly attractive for industrial applications such as inspection. However, to leave the laboratory and to become useful to an end user requires reliability in harsh conditions. From…

Robotics · Computer Science 2019-08-13 David Wisth , Marco Camurri , Maurice Fallon

Human body motions can be captured as a high-dimensional continuous signal using motion sensor technologies. The resulting data can be surprisingly rich in information, even when captured from persons with limited mobility. In this work, we…

Clustering real world data often faced with curse of dimensionality, where real world data often consist of many dimensions. Multidimensional data clustering evaluation can be done through a density-based approach. Density approaches based…

Databases · Computer Science 2010-12-30 Rahmat Widia Sembiring , Jasni Mohamad Zain

Planning for diverse real-world robotic tasks necessitates to know and write all constraints. However, instances exist where these constraints are either unknown or challenging to specify accurately. A possible solution is to infer the…

Robotics · Computer Science 2025-01-17 Baiyu Peng , Aude Billard

Wearable assistive devices are increasingly becoming softer. Modelling their interface with human tissue is necessary to capture transmission of dynamic assistance. However, their nonlinear and compliant nature makes both physical modeling…

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