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The success of Reinforcement Learning (RL) heavily relies on the ability to learn robust representations from the observations of the environment. In most cases, the representations learned purely by the reinforcement learning loss can…

Machine Learning · Computer Science 2024-02-12 Somjit Nath , Rushiv Arora , Samira Ebrahimi Kahou

In model-based reinforcement learning, generative and temporal models of environments can be leveraged to boost agent performance, either by tuning the agent's representations during training or via use as part of an explicit planning…

Representation learning methods are an important tool for addressing the challenges posed by complex observations spaces in sequential decision making problems. Recently, many methods have used a wide variety of types of approaches for…

Machine Learning · Computer Science 2025-06-24 Ayoub Echchahed , Pablo Samuel Castro

Unsupervised learning of compact and relevant state representations has been proved very useful at solving complex reinforcement learning tasks. In this paper, we propose a recurrent capsule network that learns such representations by…

Machine Learning · Computer Science 2019-02-25 Louis Annabi , Michael Garcia Ortiz

While reinforcement learning has achieved considerable successes in recent years, state-of-the-art models are often still limited by the size of state and action spaces. Model-free reinforcement learning approaches use some form of state…

Machine Learning · Computer Science 2021-08-23 Paul J. Pritz , Liang Ma , Kin K. Leung

Representation learning algorithms are designed to learn abstract features that characterize data. State representation learning (SRL) focuses on a particular kind of representation learning where learned features are in low dimension,…

Artificial Intelligence · Computer Science 2018-10-30 Timothée Lesort , Natalia Díaz-Rodríguez , Jean-François Goudou , David Filliat

One of the fundamental challenges in reinforcement learning (RL) is the one of data efficiency: modern algorithms require a very large number of training samples, especially compared to humans, for solving environments with high-dimensional…

Machine Learning · Computer Science 2021-05-10 Hlynur Davíð Hlynsson , Laurenz Wiskott

In this paper, we work on a sound recognition system that continually incorporates new sound classes. Our main goal is to develop a framework where the model can be updated without relying on labeled data. For this purpose, we propose…

Audio and Speech Processing · Electrical Eng. & Systems 2023-01-11 Zhepei Wang , Cem Subakan , Xilin Jiang , Junkai Wu , Efthymios Tzinis , Mirco Ravanelli , Paris Smaragdis

Learning new tasks accumulatively without forgetting remains a critical challenge in continual learning. Generative experience replay addresses this challenge by synthesizing pseudo-data points for past learned tasks and later replaying…

Machine Learning · Computer Science 2023-10-09 Zizhao Hu , Mohammad Rostami

Neural networks are prone to catastrophic forgetting when trained incrementally on different tasks. Popular incremental learning methods mitigate such forgetting by retaining a subset of previously seen samples and replaying them during the…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Kevin Thandiackal , Tiziano Portenier , Andrea Giovannini , Maria Gabrani , Orcun Goksel

We study continual offline reinforcement learning, a practical paradigm that facilitates forward transfer and mitigates catastrophic forgetting to tackle sequential offline tasks. We propose a dual generative replay framework that retains…

Machine Learning · Computer Science 2024-04-19 Jinmei Liu , Wenbin Li , Xiangyu Yue , Shilin Zhang , Chunlin Chen , Zhi Wang

We are interested in how to design reinforcement learning agents that provably reduce the sample complexity for learning new tasks by transferring knowledge from previously-solved ones. The availability of solutions to related problems…

Machine Learning · Computer Science 2020-07-03 Andrea Tirinzoni , Riccardo Poiani , Marcello Restelli

Driving in a dynamic, multi-agent, and complex urban environment is a difficult task requiring a complex decision-making policy. The learning of such a policy requires a state representation that can encode the entire environment. Mid-level…

Machine Learning · Computer Science 2021-12-23 Eshagh Kargar , Ville Kyrki

Continual learning tries to learn new tasks without forgetting previously learned ones. In reality, most of the existing artificial neural network(ANN) models fail, while humans do the same by remembering previous works throughout their…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Subhankar Ghosh

Deep Reinforcement Learning agents often suffer from catastrophic forgetting, forgetting previously found solutions in parts of the input space when training on new data. Replay Memories are a common solution to the problem, decorrelating…

Machine Learning · Computer Science 2023-08-29 Muhammad Burhan Hafez , Tilman Immisch , Tom Weber , Stefan Wermter

Continual Learning requires the model to learn from a stream of dynamic, non-stationary data without forgetting previous knowledge. Several approaches have been developed in the literature to tackle the Continual Learning challenge. Among…

Machine Learning · Computer Science 2022-11-30 Gabriele Merlin , Vincenzo Lomonaco , Andrea Cossu , Antonio Carta , Davide Bacciu

Deep reinforcement learning (RL) algorithms suffer severe performance degradation when the interaction data is scarce, which limits their real-world application. Recently, visual representation learning has been shown to be effective and…

Machine Learning · Computer Science 2022-08-17 Yang Yue , Bingyi Kang , Zhongwen Xu , Gao Huang , Shuicheng Yan

When agents interact with a complex environment, they must form and maintain beliefs about the relevant aspects of that environment. We propose a way to efficiently train expressive generative models in complex environments. We show that a…

Machine Learning · Computer Science 2019-06-25 Karol Gregor , Danilo Jimenez Rezende , Frederic Besse , Yan Wu , Hamza Merzic , Aaron van den Oord

Continual learning systems are increasingly deployed in environments where retraining or reset is infeasible, yet many approaches emphasize task performance rather than the evolution of internal representations over time. In this work, we…

Machine Learning · Computer Science 2026-02-24 Vishnu Subramanian

A major challenge in reinforcement learning (RL) is the design of agents that are able to generalize across tasks that share common dynamics. A viable solution is meta-reinforcement learning, which identifies common structures among past…

Machine Learning · Computer Science 2019-10-24 Sephora Madjiheurem , Laura Toni