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Related papers: Visual Imitation Learning with Patch Rewards

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Explicit engineering of reward functions for given environments has been a major hindrance to reinforcement learning methods. While Inverse Reinforcement Learning (IRL) is a solution to recover reward functions from demonstrations only,…

Machine Learning · Computer Science 2020-02-24 David Venuto , Jhelum Chakravorty , Leonard Boussioux , Junhao Wang , Gavin McCracken , Doina Precup

Adversarial Imitation Learning (AIL) is a dominant framework in imitation learning that infers rewards from expert demonstrations to guide policy optimization. Although providing more expert demonstrations typically leads to improved…

Machine Learning · Computer Science 2026-04-30 Pengcheng Li , Qiang Fang , Tong Zhao , Yixing Lan , Xin Xu

Image inpainting, the process of restoring missing or corrupted regions of an image by reconstructing pixel information, has recently seen considerable advancements through deep learning-based approaches. In this paper, we introduce a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-11-11 Kourosh Kiani , Razieh Rastgoo , Alireza Chaji , Sergio Escalera

Many imitation learning (IL) algorithms use inverse reinforcement learning (IRL) to infer a reward function that aligns with the demonstration. However, the inferred reward functions often fail to capture the underlying task objectives. In…

Machine Learning · Computer Science 2024-11-01 Weichao Zhou , Wenchao Li

Visual language pre-training (VLP) models have demonstrated significant success across various domains, yet they remain vulnerable to adversarial attacks. Addressing these adversarial vulnerabilities is crucial for enhancing security in…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Dehong Kong , Siyuan Liang , Xiaopeng Zhu , Yuansheng Zhong , Wenqi Ren

The existing contrastive learning methods widely adopt one-hot instance discrimination as pretext task for self-supervised learning, which inevitably neglects rich inter-instance similarities among natural images, then leading to potential…

Computer Vision and Pattern Recognition · Computer Science 2023-06-30 Chengchao Shen , Dawei Liu , Hao Tang , Zhe Qu , Jianxin Wang

Integration of reinforcement learning and imitation learning is an important problem that has been studied for a long time in the field of intelligent robotics. Reinforcement learning optimizes policies to maximize the cumulative reward,…

Machine Learning · Computer Science 2023-01-18 Akira Kinose , Tadahiro Taniguchi

Many existing imitation learning datasets are collected from multiple demonstrators, each with different expertise at different parts of the environment. Yet, standard imitation learning algorithms typically treat all demonstrators as…

Machine Learning · Computer Science 2022-06-14 Mark Beliaev , Andy Shih , Stefano Ermon , Dorsa Sadigh , Ramtin Pedarsani

Unsupervised representation learning holds the promise of exploiting large amounts of unlabeled data to learn general representations. A promising technique for unsupervised learning is the framework of Variational Auto-encoders (VAEs).…

Computer Vision and Pattern Recognition · Computer Science 2020-04-09 Kamal Gupta , Saurabh Singh , Abhinav Shrivastava

Learning from demonstrations has made great progress over the past few years. However, it is generally data hungry and task specific. In other words, it requires a large amount of data to train a decent model on a particular task, and the…

Machine Learning · Computer Science 2021-03-29 Pin Wang , Hanhan Li , Ching-Yao Chan

The majority of language model training builds on imitation learning. It covers pretraining, supervised fine-tuning, and affects the starting conditions for reinforcement learning from human feedback (RLHF). The simplicity and scalability…

We introduce an adversarial sample detection algorithm based on image residuals, specifically designed to guard against patch-based attacks. The image residual is obtained as the difference between an input image and a denoised version of…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Marius Arvinte , Ahmed Tewfik , Sriram Vishwanath

Compared to traditional imitation learning methods such as DAgger and DART, intervention-based imitation offers a more convenient and sample efficient data collection process to users. In this paper, we introduce Reinforced…

Robotics · Computer Science 2022-03-30 Rom Parnichkun , Matthew N. Dailey , Atsushi Yamashita

Many imitation learning (IL) algorithms employ inverse reinforcement learning (IRL) to infer the intrinsic reward function that an expert is implicitly optimizing for based on their demonstrated behaviors. However, in practice, IRL-based IL…

Machine Learning · Computer Science 2024-02-08 Weichao Zhou , Wenchao Li

This work discusses a learning approach to mask rewarding objects in images using sparse reward signals from an imitation learning dataset. For that, we train an Hourglass network using only feedback from a critic model. The Hourglass…

Computer Vision and Pattern Recognition · Computer Science 2021-07-21 Andrew Melnik , Augustin Harter , Christian Limberg , Krishan Rana , Niko Suenderhauf , Helge Ritter

Adversarial imitation learning (AIL), a prominent approach in imitation learning, has achieved significant practical success powered by neural network approximation. However, existing theoretical analyses of AIL are primarily confined to…

Machine Learning · Computer Science 2026-05-05 Tian Xu , Zhilong Zhang , Zexuan Chen , Ruishuo Chen , Yihao Sun , Yang Yu

We consider a patch-based learning approach defined in terms of neural networks to estimate spatially adaptive regularisation parameter maps for image denoising with weighted Total Variation (TV) and test it to situations when the noise…

Image and Video Processing · Electrical Eng. & Systems 2025-06-23 Claudio Fantasia , Luca Calatroni , Xavier Descombes , Rim Rekik

In this work, we introduce a new method for imitation learning from video demonstrations. Our method, Relational Mimic (RM), improves on previous visual imitation learning methods by combining generative adversarial networks and relational…

Machine Learning · Computer Science 2019-12-19 Lionel Blondé , Yichuan Charlie Tang , Jian Zhang , Russ Webb

In complex real-world tasks such as robotic manipulation and autonomous driving, collecting expert demonstrations is often more straightforward than specifying precise learning objectives and task descriptions. Learning from expert data can…

Robotics · Computer Science 2025-05-05 Daulet Baimukashev , Gokhan Alcan , Kevin Sebastian Luck , Ville Kyrki

As machine learning models become more capable, they have exhibited increased potential in solving complex tasks. One of the most promising directions uses deep reinforcement learning to train autonomous agents in computer network defense…

Machine Learning · Computer Science 2023-10-23 Elizabeth Bates , Vasilios Mavroudis , Chris Hicks
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