Robotic world models—conceptualization, review, and engineering best practices

The term “world model” (WM) has surfaced several times in robotics, for instance, in the context of mobile manipulation, navigation and mapping, and deep reinforcement learning. Despite its frequent use, the term does not appear to have a concise definition that is consistently used across domains a...

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Main Authors: Ryo Sakagami, Florian S. Lay, Andreas Dömel, Martin J. Schuster, Alin Albu-Schäffer, Freek Stulp
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-11-01
Series:Frontiers in Robotics and AI
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/frobt.2023.1253049/full
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author Ryo Sakagami
Florian S. Lay
Andreas Dömel
Martin J. Schuster
Alin Albu-Schäffer
Freek Stulp
author_facet Ryo Sakagami
Florian S. Lay
Andreas Dömel
Martin J. Schuster
Alin Albu-Schäffer
Freek Stulp
author_sort Ryo Sakagami
collection DOAJ
description The term “world model” (WM) has surfaced several times in robotics, for instance, in the context of mobile manipulation, navigation and mapping, and deep reinforcement learning. Despite its frequent use, the term does not appear to have a concise definition that is consistently used across domains and research fields. In this review article, we bootstrap a terminology for WMs, describe important design dimensions found in robotic WMs, and use them to analyze the literature on WMs in robotics, which spans four decades. Throughout, we motivate the need for WMs by using principles from software engineering, including “Design for use,” “Do not repeat yourself,” and “Low coupling, high cohesion.” Concrete design guidelines are proposed for the future development and implementation of WMs. Finally, we highlight similarities and differences between the use of the term “world model” in robotic mobile manipulation and deep reinforcement learning.
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spelling doaj.art-ed73c98cf73c48069f90adfbae2b68492023-11-02T10:07:23ZengFrontiers Media S.A.Frontiers in Robotics and AI2296-91442023-11-011010.3389/frobt.2023.12530491253049Robotic world models—conceptualization, review, and engineering best practicesRyo SakagamiFlorian S. LayAndreas DömelMartin J. SchusterAlin Albu-SchäfferFreek StulpThe term “world model” (WM) has surfaced several times in robotics, for instance, in the context of mobile manipulation, navigation and mapping, and deep reinforcement learning. Despite its frequent use, the term does not appear to have a concise definition that is consistently used across domains and research fields. In this review article, we bootstrap a terminology for WMs, describe important design dimensions found in robotic WMs, and use them to analyze the literature on WMs in robotics, which spans four decades. Throughout, we motivate the need for WMs by using principles from software engineering, including “Design for use,” “Do not repeat yourself,” and “Low coupling, high cohesion.” Concrete design guidelines are proposed for the future development and implementation of WMs. Finally, we highlight similarities and differences between the use of the term “world model” in robotic mobile manipulation and deep reinforcement learning.https://www.frontiersin.org/articles/10.3389/frobt.2023.1253049/fullworld modelstate representationsoftware architecture for robotics and automationenvironment modelingautonomous robots
spellingShingle Ryo Sakagami
Florian S. Lay
Andreas Dömel
Martin J. Schuster
Alin Albu-Schäffer
Freek Stulp
Robotic world models—conceptualization, review, and engineering best practices
Frontiers in Robotics and AI
world model
state representation
software architecture for robotics and automation
environment modeling
autonomous robots
title Robotic world models—conceptualization, review, and engineering best practices
title_full Robotic world models—conceptualization, review, and engineering best practices
title_fullStr Robotic world models—conceptualization, review, and engineering best practices
title_full_unstemmed Robotic world models—conceptualization, review, and engineering best practices
title_short Robotic world models—conceptualization, review, and engineering best practices
title_sort robotic world models conceptualization review and engineering best practices
topic world model
state representation
software architecture for robotics and automation
environment modeling
autonomous robots
url https://www.frontiersin.org/articles/10.3389/frobt.2023.1253049/full
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