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This work provides a rigorous framework for studying continuous time control problems in uncertain environments. The framework considered models uncertainty in state dynamics as a measure on the space of functions. This measure is…

Optimization and Control · Mathematics 2018-02-22 Ryan Murray , Michele Palladino

Safe reinforcement learning deals with mitigating or avoiding unsafe situations by reinforcement learning (RL) agents. Safe RL approaches are based on specific risk representations for particular problems or domains. In order to analyze…

Machine Learning · Computer Science 2023-12-11 Leonardo Villalobos-Arias , Derek Martin , Abhijeet Krishnan , Madeleine Gagné , Colin M. Potts , Arnav Jhala

Autonomous 3D environment exploration is a fundamental task for various applications such as navigation. The goal of exploration is to investigate a new environment and build its occupancy map efficiently. In this paper, we propose a new…

Artificial Intelligence · Computer Science 2021-11-03 Liu Juncheng , McCane Brendan , Mills Steven

Reinforcement learning allows solving complex tasks, however, the learning tends to be task-specific and the sample efficiency remains a challenge. We present Plan2Explore, a self-supervised reinforcement learning agent that tackles both…

Machine Learning · Computer Science 2020-07-02 Ramanan Sekar , Oleh Rybkin , Kostas Daniilidis , Pieter Abbeel , Danijar Hafner , Deepak Pathak

We present a general framework for training safe agents whose naive incentives are unsafe. As an example, manipulative or deceptive behaviour can improve rewards but should be avoided. Most approaches fail here: agents maximize expected…

Artificial Intelligence · Computer Science 2022-04-22 Sebastian Farquhar , Ryan Carey , Tom Everitt

The major challenges of collision avoidance for robot navigation in crowded scenes lie in accurate environment modeling, fast perceptions, and trustworthy motion planning policies. This paper presents a novel adaptive environment model…

Robotics · Computer Science 2022-10-28 Shuaijun Wang , Rui Gao , Ruihua Han , Shengduo Chen , Chengyang Li , Qi Hao

Safe exploration is a common problem in reinforcement learning (RL) that aims to prevent agents from making disastrous decisions while exploring their environment. A family of approaches to this problem assume domain knowledge in the form…

Artificial Intelligence · Computer Science 2022-08-24 Steven Carr , Nils Jansen , Sebastian Junges , Ufuk Topcu

The use of mobile robots is being popular over the world mainly for autonomous explorations in hazardous/ toxic or unknown environments. This exploration will be more effective and efficient if the explorations in unknown environment can be…

Robotics · Computer Science 2011-10-11 Dip Narayan Ray , Somajyoti Majumder , Sumit Mukhopadhyay

Increasingly complex, non-linear World-Earth system models are used for describing the dynamics of the biophysical Earth system and the socio-economic and socio-cultural World of human societies and their interactions. Identifying pathways…

Physics and Society · Physics 2020-09-16 Felix M. Strnad , Wolfram Barfuss , Jonathan F. Donges , Jobst Heitzig

Traditional model-based reinforcement learning approaches learn a model of the environment dynamics without explicitly considering how it will be used by the agent. In the presence of misspecified model classes, this can lead to poor…

Machine Learning · Computer Science 2020-10-20 Pierluca D'Oro , Alberto Maria Metelli , Andrea Tirinzoni , Matteo Papini , Marcello Restelli

We study the problem of safe learning and exploration in sequential control problems. The goal is to safely collect data samples from operating in an environment, in order to learn to achieve a challenging control goal (e.g., an agile…

Machine Learning · Computer Science 2020-06-30 Anqi Liu , Guanya Shi , Soon-Jo Chung , Anima Anandkumar , Yisong Yue

Self-driving vehicles must be able to act intelligently in diverse and difficult environments, marked by high-dimensional state spaces, a myriad of optimization objectives and complex behaviors. Traditionally, classical optimization and…

Robotics · Computer Science 2020-11-11 Josiah Coad , Zhiqian Qiao , John M. Dolan

The emergence of autonomous Large Language Model (LLM) agents capable of tool usage has introduced new safety risks that go beyond traditional conversational misuse. These agents, empowered to execute external functions, are vulnerable to…

Artificial Intelligence · Computer Science 2025-07-14 Zeyang Sha , Hanling Tian , Zhuoer Xu , Shiwen Cui , Changhua Meng , Weiqiang Wang

Safe reinforcement learning (RL) agents accomplish given tasks while adhering to specific constraints. Employing constraints expressed via easily-understandable human language offers considerable potential for real-world applications due to…

Machine Learning · Computer Science 2024-05-16 Xingzhou Lou , Junge Zhang , Ziyan Wang , Kaiqi Huang , Yali Du

Efficient exploration is an unsolved problem in Reinforcement Learning which is usually addressed by reactively rewarding the agent for fortuitously encountering novel situations. This paper introduces an efficient active exploration…

Machine Learning · Computer Science 2019-06-17 Pranav Shyam , Wojciech Jaśkowski , Faustino Gomez

Large language model based agents often fail in unfamiliar environments due to premature exploitation: a tendency to act on prior knowledge before acquiring sufficient environment-specific information. We identify autonomous exploration as…

Artificial Intelligence · Computer Science 2026-05-18 Ziang Ye , Wentao Shi , Yuxin Liu , Yu Wang , Zhengzhou Cai , Yaorui Shi , Qi Gu , Xunliang Cai , Fuli Feng

Safe reinforcement learning (Safe RL) aims to ensure policy performance while satisfying safety constraints. However, most existing Safe RL methods assume benign environments, making them vulnerable to adversarial perturbations commonly…

Machine Learning · Computer Science 2026-02-19 Jialiang Fan , Shixiong Jiang , Mengyu Liu , Fanxin Kong

Exploration in sparse reward environments remains one of the key challenges of model-free reinforcement learning. Instead of solely relying on extrinsic rewards provided by the environment, many state-of-the-art methods use intrinsic…

Machine Learning · Computer Science 2020-03-03 Roberta Raileanu , Tim Rocktäschel

Recent progress in AI and Reinforcement learning has shown great success in solving complex problems with high dimensional state spaces. However, most of these successes have been primarily in simulated environments where failure is of…

Artificial Intelligence · Computer Science 2019-03-25 Bharat Prakash , Mohit Khatwani , Nicholas Waytowich , Tinoosh Mohsenin

Operation in a real world traffic requires autonomous vehicles to be able to plan their motion in complex environments (multiple moving participants). Planning through such environment requires the right search space to be provided for the…

Robotics · Computer Science 2019-05-22 Jasprit Singh Gill , Pierluigi Pisu , Venkat N. Krovi , Matthias J. Schmid