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Related papers: Regularity as Intrinsic Reward for Free Play

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The aim of this paper is to demonstrate the efficacy of using Contrastive Random Walk as a curiosity method to achieve faster convergence to the optimal policy.Contrastive Random Walk defines the transition matrix of a random walk with the…

Machine Learning · Computer Science 2022-04-26 Zixuan Pan , Zihao Wei , Yidong Huang , Aditya Gupta

Recent advances in large language model (LLM) reasoning through reinforcement learning rely on annotated datasets for verifiable rewards, which may limit models' ability to surpass human-level performance. While self-play offers a promising…

Computation and Language · Computer Science 2026-01-01 Wai-Chung Kwan , Joshua Ong Jun Leang , Pavlos Vougiouklis , Jeff Z. Pan , Marco Valentino , Pasquale Minervini

Recent studies have shown that reinforcement learning (RL) models are vulnerable in various noisy scenarios. For instance, the observed reward channel is often subject to noise in practice (e.g., when rewards are collected through sensors),…

Machine Learning · Computer Science 2020-02-04 Jingkang Wang , Yang Liu , Bo Li

Model-free reinforcement learning algorithms have exhibited great potential in solving single-task sequential decision-making problems with high-dimensional observations and long horizons, but are known to be hard to generalize across…

Machine Learning · Computer Science 2023-05-30 Boyuan Chen , Chuning Zhu , Pulkit Agrawal , Kaiqing Zhang , Abhishek Gupta

Deep reinforcement learning has proven remarkably useful in training agents from unstructured data. However, the opacity of the produced agents makes it difficult to ensure that they adhere to various requirements posed by human engineers.…

Machine Learning · Computer Science 2022-02-10 Raz Yerushalmi , Guy Amir , Achiya Elyasaf , David Harel , Guy Katz , Assaf Marron

In the last few years, the research activity around reinforcement learning tasks formulated over environments with sparse rewards has been especially notable. Among the numerous approaches proposed to deal with these hard exploration…

Machine Learning · Computer Science 2022-11-22 Alain Andres , Esther Villar-Rodriguez , Javier Del Ser

Learning in environments with sparse rewards remains a fundamental challenge in reinforcement learning. Artificial curiosity addresses this limitation through intrinsic rewards to guide exploration, however, the precise formulation of these…

Machine Learning · Computer Science 2026-04-20 Alexander Nedergaard , Pablo A. Morales

Reinforcement-learning agents seek to maximize a reward signal through environmental interactions. As humans, our job in the learning process is to design reward functions to express desired behavior and enable the agent to learn such…

Machine Learning · Computer Science 2024-08-08 Zhiyuan Zhou , Shreyas Sundara Raman , Henry Sowerby , Michael L. Littman

In constrained reinforcement learning (RL), a learning agent seeks to not only optimize the overall reward but also satisfy the additional safety, diversity, or budget constraints. Consequently, existing constrained RL solutions require…

Machine Learning · Computer Science 2021-07-13 Sobhan Miryoosefi , Chi Jin

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

Advancements in reinforcement learning have produced a variety of complex and useful intrinsic driving forces; crucially, these drivers operate under a direct conditioning paradigm. This form of conditioning limits our agents' capacity by…

Machine Learning · Computer Science 2026-05-13 Rodney A Sanchez , Ferat Sahin , Alex Ororbia , Jamison Heard

We introduce inverse reinforcement learning (IRL) as an effective paradigm for training abstractive summarization models, imitating human summarization behaviors. Our IRL model estimates the reward function using a suite of important…

Computation and Language · Computer Science 2023-12-06 Yu Fu , Deyi Xiong , Yue Dong

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

Robotic grasping is a crucial area of research as it can result in the acceleration of the automation of several Industries utilizing robots ranging from manufacturing to healthcare. Reinforcement learning is the field of study where an…

Artificial Intelligence · Computer Science 2020-01-14 Raghav Nagpal , Achyuthan Unni Krishnan , Hanshen Yu

Humans can leverage hierarchical structures to split a task into sub-tasks and solve problems efficiently. Both imitation and reinforcement learning or a combination of them with hierarchical structures have been proven to be an efficient…

Robotics · Computer Science 2020-12-15 Yaru Niu , Yijun Gu

Offline reinforcement learning (RL) is an effective tool for real-world recommender systems with its capacity to model the dynamic interest of users and its interactive nature. Most existing offline RL recommender systems focus on…

Information Retrieval · Computer Science 2025-05-13 Yi Zhang , Ruihong Qiu , Jiajun Liu , Sen Wang

Reinforcement Learning (RL) has become a key approach for enhancing the reasoning capabilities of large language models. However, prevalent RL approaches like proximal policy optimization and group relative policy optimization suffer from…

Machine Learning · Computer Science 2026-02-02 Jingtong Gao , Ling Pan , Yejing Wang , Rui Zhong , Chi Lu , Maolin Wang , Qingpeng Cai , Peng Jiang , Xiangyu Zhao

The reinforcement learning research area contains a wide range of methods for solving the problems of intelligent agent control. Despite the progress that has been made, the task of creating a highly autonomous agent is still a significant…

Machine Learning · Computer Science 2023-01-25 Artem Latyshev , Aleksandr I. Panov

Inverse reinforcement learning (IRL) usually assumes the reward function model is pre-specified as a weighted sum of features and estimates the weighting parameters only. However, how to select features and determine a proper reward model…

Machine Learning · Computer Science 2025-04-01 Chendi Qu , Jianping He , Xiaoming Duan , Jiming Chen

Efficient exploration in reinforcement learning is a challenging problem commonly addressed through intrinsic rewards. Recent prominent approaches are based on state novelty or variants of artificial curiosity. However, directly applying…

Machine Learning · Computer Science 2022-11-21 Aditya Ramesh , Louis Kirsch , Sjoerd van Steenkiste , Jürgen Schmidhuber