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Infants are experts at playing, with an amazing ability to generate novel structured behaviors in unstructured environments that lack clear extrinsic reward signals. We seek to replicate some of these abilities with a neural network that…

Machine Learning · Computer Science 2018-02-22 Nick Haber , Damian Mrowca , Li Fei-Fei , Daniel L. K. Yamins

In Reinforcement Learning (RL), artificial agents are trained to maximize numerical rewards by performing tasks. Exploration is essential in RL because agents must discover information before exploiting it. Two rewards encouraging efficient…

Machine Learning · Computer Science 2024-05-14 Theodore Jerome Tinker , Kenji Doya , Jun Tani

We consider an active visual exploration scenario, where an agent must intelligently select its camera motions to efficiently reconstruct the full environment from only a limited set of narrow field-of-view glimpses. While the agent has…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Santhosh K. Ramakrishnan , Kristen Grauman

Learning requires both study and curiosity. A good learner is not only good at extracting information from the data given to it, but also skilled at finding the right new information to learn from. This is especially true when a human…

Computer Vision and Pattern Recognition · Computer Science 2021-09-03 Ervin Teng , Bob Iannucci

Computer-aided design of molecules has the potential to disrupt the field of drug and material discovery. Machine learning, and deep learning, in particular, have been topics where the field has been developing at a rapid pace.…

Machine Learning · Computer Science 2022-08-08 Luca A. Thiede , Mario Krenn , AkshatKumar Nigam , Alan Aspuru-Guzik

Reinforcement learning requires interaction with an environment, which is expensive for robots. This constraint necessitates approaches that work with limited environmental interaction by maximizing the reuse of previous experiences. We…

Artificial Intelligence · Computer Science 2024-04-05 Benedict Quartey , Ankit Shah , George Konidaris

Tasks with large state space and sparse rewards present a longstanding challenge to reinforcement learning. In these tasks, an agent needs to explore the state space efficiently until it finds a reward. To deal with this problem, the…

Machine Learning · Computer Science 2023-10-16 Jiaheng Hu , Zizhao Wang , Peter Stone , Roberto Martin-Martin

Reinforcement learning (RL) agents improve through trial-and-error, but when reward is sparse and the agent cannot discover successful action sequences, learning stagnates. This has been a notable problem in training deep RL agents to…

Artificial Intelligence · Computer Science 2018-02-27 Evan Zheran Liu , Kelvin Guu , Panupong Pasupat , Tianlin Shi , Percy Liang

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

It has been a long-standing dream to design artificial agents that explore their environment efficiently via intrinsic motivation, similar to how children perform curious free play. Despite recent advances in intrinsically motivated…

Machine Learning · Computer Science 2022-11-29 Cansu Sancaktar , Sebastian Blaes , Georg Martius

Exploration under sparse reward is a long-standing challenge of model-free reinforcement learning. The state-of-the-art methods address this challenge by introducing intrinsic rewards to encourage exploration in novel states or uncertain…

Machine Learning · Computer Science 2021-02-05 Daochen Zha , Wenye Ma , Lei Yuan , Xia Hu , Ji Liu

Effective exploration is critical for reinforcement learning agents in environments with sparse rewards or high-dimensional state-action spaces. Recent works based on state-visitation counts, curiosity and entropy-maximization generate…

Machine Learning · Computer Science 2022-09-13 Bang You , Jingming Xie , Youping Chen , Jan Peters , Oleg Arenz

Reinforcement learners are agents that learn to pick actions that lead to high reward. Ideally, the value of a reinforcement learner's policy approaches optimality--where the optimal informed policy is the one which maximizes reward.…

Machine Learning · Computer Science 2021-05-27 Michael K. Cohen , Elliot Catt , Marcus Hutter

Recent advancements in agentic test-time scaling allow models to gather environmental feedback before committing to final actions. A key limitation of existing methods is that they typically employ undifferentiated exploration strategies,…

Artificial Intelligence · Computer Science 2026-05-13 Xingyuan Hua , Sheng Yue , Ju Ren

Deploying Multimodal Large Language Models as the brain of embodied agents remains challenging, particularly under long-horizon observations and limited context budgets. Existing memory assisted methods often rely on textual summaries,…

Robotics · Computer Science 2026-03-03 Ji Li , Bo Wang , Jing Xia , Mingyi Li , Shiyan Hu

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

Autonomous robots frequently need to detect "interesting" scenes to decide on further exploration, or to decide which data to share for cooperation. These scenarios often require fast deployment with little or no training data. Prior work…

Robotics · Computer Science 2021-12-21 Chen Wang , Yuheng Qiu , Wenshan Wang , Yafei Hu , Seungchan Kim , Sebastian Scherer

Embodied AI has been recently gaining attention as it aims to foster the development of autonomous and intelligent agents. In this paper, we devise a novel embodied setting in which an agent needs to explore a previously unknown environment…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Roberto Bigazzi , Federico Landi , Marcella Cornia , Silvia Cascianelli , Lorenzo Baraldi , Rita Cucchiara

Domain adaptation is a common problem in robotics, with applications such as transferring policies from simulation to real world and lifelong learning. Performing such adaptation, however, requires informative data about the environment to…

Machine Learning · Computer Science 2021-03-15 Karol Arndt , Oliver Struckmeier , Ville Kyrki

Consider the problem of exploration in sparse-reward or reward-free environments, such as in Montezuma's Revenge. In the curiosity-driven paradigm, the agent is rewarded for how much each realized outcome differs from their predicted…

Machine Learning · Statistics 2023-07-21 Daniel Jarrett , Corentin Tallec , Florent Altché , Thomas Mesnard , Rémi Munos , Michal Valko