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Accurately modeling soft robots in simulation is computationally expensive and commonly falls short of representing the real world. This well-known discrepancy, known as the sim-to-real gap, can have several causes, such as coarsely…

Robotics · Computer Science 2024-09-10 Junpeng Gao , Mike Yan Michelis , Andrew Spielberg , Robert K. Katzschmann

We quantify the accuracy of various simulators compared to a real world robotic reaching and interaction task. Simulators are used in robotics to design solutions for real world hardware without the need for physical access. The `reality…

Robotics · Computer Science 2018-11-09 Jack Collins , David Howard , Jürgen Leitner

Recently, deep reinforcement learning (RL) has shown some impressive successes in robotic manipulation applications. However, training robots in the real world is nontrivial owing to sample efficiency and safety concerns. Sim-to-real…

Robotic systems driven by artificial muscles present unique challenges due to the nonlinear dynamics of actuators and the complex designs of mechanical structures. Traditional model-based controllers often struggle to achieve desired…

Robotics · Computer Science 2025-08-12 Jiyue Tao , Yunsong Zhang , Sunil Kumar Rajendran , Feitian Zhang

Reinforcement learning (RL) has demonstrated great success in the past several years. However, most of the scenarios focus on simulated environments. One of the main challenges of transferring the policy learned in a simulated environment…

Robotics · Computer Science 2021-02-24 Ya-Yen Tsai , Hui Xu , Zihan Ding , Chong Zhang , Edward Johns , Bidan Huang

Humanoid robots deployed in real-world scenarios often need to carry unknown payloads, which introduce significant mismatch and degrade the effectiveness of simulation-to-reality reinforcement learning methods. To address this challenge, we…

Robotics · Computer Science 2026-03-17 Xingyi Wang , Chenyun Zhang , Weiji Xie , Chao Yu , Wei Song , Chenjia Bai , Shiqiang Zhu

Achieving athletic loco-manipulation on robots requires moving beyond traditional tracking rewards - which simply guide the robot along a reference trajectory - to task rewards that drive truly dynamic, goal-oriented behaviors. Commands…

Robotics · Computer Science 2025-02-18 Nolan Fey , Gabriel B. Margolis , Martin Peticco , Pulkit Agrawal

We propose a novel approach to the 'reality gap' problem, i.e., modifying a robot simulation so that its performance becomes more similar to observed real world phenomena. This problem arises whether the simulation is being used by human…

Robotics · Computer Science 2020-05-11 Damian Lyons , James Finocchiaro , Michael Novitzky , Christopher Korpela

Reinforcement learning often requires extensive training data. Simulation-to-real transfer offers a promising approach to address this challenge in robotics. While differentiable simulators offer improved sample efficiency through exact…

Robotics · Computer Science 2024-12-02 Severin Bochem , Eduardo Gonzalez-Sanchez , Yves Bicker , Gabriele Fadini

Simulation to Real-World Transfer allows affordable and fast training of learning-based robots for manipulation tasks using Deep Reinforcement Learning methods. Currently, Sim2Real uses Asymmetric Actor-Critic approaches to reduce the rich…

Robotics · Computer Science 2024-10-17 Lingfeng Tao , Jiucai Zhang , Qiaojie Zheng , Xiaoli Zhang

We present SIM-FSVGD for learning robot dynamics from data. As opposed to traditional methods, SIM-FSVGD leverages low-fidelity physical priors, e.g., in the form of simulators, to regularize the training of neural network models. While…

Robotics · Computer Science 2024-09-04 Jonas Rothfuss , Bhavya Sukhija , Lenart Treven , Florian Dörfler , Stelian Coros , Andreas Krause

In this work, we aim to teach robots to manipulate various thin-shell materials. Prior works studying thin-shell object manipulation mostly rely on heuristic policies or learn policies from real-world video demonstrations, and only focus on…

Robotics · Computer Science 2024-04-02 Yian Wang , Juntian Zheng , Zhehuan Chen , Zhou Xian , Gu Zhang , Chao Liu , Chuang Gan

The 3D bin packing problem, with its diverse industrial applications, has garnered significant research attention in recent years. Existing approaches typically model it as a discrete and static process, while real-world applications…

Robotics · Computer Science 2025-11-26 Lidi Zhang , Han Wu , Liyu Zhang , Ruofeng Liu , Haotian Wang , Chao Li , Desheng Zhang , Yunhuai Liu , Tian He

Reinforcement learning (RL) has gained traction for its success in solving complex tasks for robotic applications. However, its deployment on physical robots remains challenging due to safety risks and the comparatively high costs of…

Robotics · Computer Science 2025-02-24 Jefferson Silveira , Joshua A. Marshall , Sidney N. Givigi

This paper presents a Sim2Real (Simulation to Reality) approach to bridge the gap between a trained agent in a simulated environment and its real-world implementation in navigating a robot in a similar setting. Specifically, we focus on…

Robotics · Computer Science 2025-01-07 Murad Mehrab Abrar , Souryadeep Mondal , Michelle Hickner

Automation holds the potential to assist surgeons in robotic interventions, shifting their mental work load from visuomotor control to high level decision making. Reinforcement learning has shown promising results in learning complex…

Human-like dexterous hands with multiple fingers offer human-level manipulation capabilities, but training control policies that can directly deploy on real hardware remains difficult due to contact-rich physics and imperfect actuation. We…

Robotics · Computer Science 2026-01-12 Zhe Zhao , Haoyu Dong , Zhengmao He , Yang Li , Xinyu Yi , Zhibin Li

Sample efficiency has been one of the major challenges for deep reinforcement learning. Recently, model-based reinforcement learning has been proposed to address this challenge by performing planning on imaginary trajectories with a learned…

Machine Learning · Computer Science 2020-10-26 Guangxiang Zhu , Minghao Zhang , Honglak Lee , Chongjie Zhang

Applying Deep Reinforcement Learning (DRL) to complex tasks in the field of robotics has proven to be very successful in the recent years. However, most of the publications focus either on applying it to a task in simulation or to a task in…

Robotics · Computer Science 2020-11-17 Matteo Lucchi , Friedemann Zindler , Stephan Mühlbacher-Karrer , Horst Pichler

We present a differentiable soft-body physics simulator that can be composed with neural networks as a differentiable layer. In contrast to other differentiable physics approaches that use explicit forward models to define state…

Machine Learning · Computer Science 2021-09-13 Junior Rojas , Eftychios Sifakis , Ladislav Kavan