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Many challenging reinforcement learning (RL) problems require designing a distribution of tasks that can be applied to train effective policies. This distribution of tasks can be specified by the curriculum. A curriculum is meant to improve…

Machine Learning · Computer Science 2023-01-03 Maria Nesterova , Alexey Skrynnik , Aleksandr Panov

In large language model-based agents, memory serves as a critical capability for achieving personalization by storing and utilizing users' information. Although some previous studies have adopted memory to implement user personalization,…

Artificial Intelligence · Computer Science 2025-08-20 Zeyu Zhang , Yang Zhang , Haoran Tan , Rui Li , Xu Chen

Inverse reinforcement learning (IRL) infers a reward function from demonstrations, allowing for policy improvement and generalization. However, despite much recent interest in IRL, little work has been done to understand the minimum set of…

Machine Learning · Computer Science 2019-08-19 Daniel S. Brown , Scott Niekum

Recent advances in deep learning have led to a data-centric intelligence i.e. artificially intelligent models unlocking the potential to ingest a large amount of data and be really good at performing digital tasks such as text-to-image…

Computer Vision and Pattern Recognition · Computer Science 2024-06-03 Muhammad Zubair Irshad

This paper discusses a system that accelerates reinforcement learning by using transfer from related tasks. Without such transfer, even if two tasks are very similar at some abstract level, an extensive re-learning effort is required. The…

Artificial Intelligence · Computer Science 2011-06-10 C. Drummond

Acquiring complex behaviors is essential for artificially intelligent agents, yet learning these behaviors in high-dimensional settings poses a significant challenge due to the vast search space. Traditional reinforcement learning (RL)…

Machine Learning · Computer Science 2025-04-22 Mert Albaba , Sammy Christen , Thomas Langarek , Christoph Gebhardt , Otmar Hilliges , Michael J. Black

Deep learning is developing rapidly and handling common computer vision tasks well. It is time to pay attention to more complex vision tasks, as model size, knowledge, and reasoning capabilities continue to improve. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Pancheng Zhao , Deng-Ping Fan , Shupeng Cheng , Salman Khan , Fahad Shahbaz Khan , David Clifton , Peng Xu , Jufeng Yang

Reinforcement learning has shown promise in learning policies that can solve complex problems. However, manually specifying a good reward function can be difficult, especially for intricate tasks. Inverse reinforcement learning offers a…

Machine Learning · Computer Science 2017-11-28 Peter Henderson , Wei-Di Chang , Pierre-Luc Bacon , David Meger , Joelle Pineau , Doina Precup

Often times in imitation learning (IL), the environment we collect expert demonstrations in and the environment we want to deploy our learned policy in aren't exactly the same (e.g. demonstrations collected in simulation but deployment in…

Neural and Evolutionary Computing · Computer Science 2024-06-19 Silvia Sapora , Gokul Swamy , Chris Lu , Yee Whye Teh , Jakob Nicolaus Foerster

For most reinforcement learning approaches, the learning is performed by maximizing an accumulative reward that is expectedly and manually defined for specific tasks. However, in real world, rewards are emergent phenomena from the complex…

Artificial Intelligence · Computer Science 2017-05-23 Min Xu

Extrinsic rewards can effectively guide reinforcement learning (RL) agents in specific tasks. However, extrinsic rewards frequently fall short in complex environments due to the significant human effort needed for their design and…

Machine Learning · Computer Science 2025-04-28 Mingqi Yuan , Roger Creus Castanyer , Bo Li , Xin Jin , Wenjun Zeng , Glen Berseth

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

Efficient exploration is a crucial challenge in deep reinforcement learning. Several methods, such as behavioral priors, are able to leverage offline data in order to efficiently accelerate reinforcement learning on complex tasks. However,…

Machine Learning · Computer Science 2022-09-01 Marco Bagatella , Sammy Christen , Otmar Hilliges

Perceptual image compression has shown strong potential for producing visually appealing results at low bitrates, surpassing classical standards and pixel-wise distortion-oriented neural methods. However, existing methods typically improve…

Image and Video Processing · Electrical Eng. & Systems 2025-02-21 Hao Wei , Yanhui Zhou , Yiwen Jia , Chenyang Ge , Saeed Anwar , Ajmal Mian

CLIP is a discriminative model trained to align images and text in a shared embedding space. Due to its multimodal structure, it serves as the backbone of many generative pipelines, where a decoder is trained to map from the shared space…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Antonio D'Orazio , Maria Rosaria Briglia , Donato Crisostomi , Dario Loi , Emanuele Rodolà , Iacopo Masi

We investigate a deep reinforcement learning (RL) architecture that supports explaining why a learned agent prefers one action over another. The key idea is to learn action-values that are directly represented via human-understandable…

Artificial Intelligence · Computer Science 2021-01-19 Zhengxian Lin , Kim-Ho Lam , Alan Fern

Implicit models separate the definition of a layer from the description of its solution process. While implicit layers allow features such as depth to adapt to new scenarios and inputs automatically, this adaptivity makes its computational…

Machine Learning · Computer Science 2023-03-06 Avik Pal , Alan Edelman , Christopher Rackauckas

In this work, we examine the advantages of using multiple types of behaviour in recommendation systems. Intuitively, each user has to do some implicit actions (e.g., click) before making an explicit decision (e.g., purchase). Previous…

Machine Learning · Computer Science 2021-07-27 Quyen Tran , Lam Tran , Linh Chu Hai , Linh Ngo Van , Khoat Than

Continual learning (CL) remains one of the long-standing challenges for deep neural networks due to catastrophic forgetting of previously acquired knowledge. Although rehearsal-based approaches have been fairly successful in mitigating…

Machine Learning · Computer Science 2024-04-30 Prashant Bhat , Bharath Renjith , Elahe Arani , Bahram Zonooz

High-quality and representative data is essential for both Imitation Learning (IL)- and Reinforcement Learning (RL)-based motion planning tasks. For real robots, it is challenging to collect enough qualified data either as demonstrations…

Robotics · Computer Science 2023-06-13 Sha Luo , Lambert Schomaker