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In this paper, we propose a dual-module network architecture that employs a domain discriminative feature module to encourage the domain invariant feature module to learn more domain invariant features. The proposed architecture can be…

Machine Learning · Computer Science 2022-01-07 Yiju Yang , Tianxiao Zhang , Guanyu Li , Taejoon Kim , Guanghui Wang

Convolutional dictionary learning (CDL) estimates shift invariant basis adapted to multidimensional data. CDL has proven useful for image denoising or inpainting, as well as for pattern discovery on multivariate signals. As estimated…

Machine Learning · Computer Science 2019-01-29 Thomas Moreau , Alexandre Gramfort

Imitation learning trains a policy by mimicking expert demonstrations. Various imitation methods were proposed and empirically evaluated, meanwhile, their theoretical understanding needs further studies. In this paper, we firstly analyze…

Machine Learning · Computer Science 2020-10-23 Tian Xu , Ziniu Li , Yang Yu

Enabling robots to effectively imitate expert skills in longhorizon tasks such as locomotion, manipulation, and more, poses a long-standing challenge. Existing imitation learning (IL) approaches for robots still grapple with sub-optimal…

Robotics · Computer Science 2023-09-29 Zixuan Chen , Ze Ji , Shuyang Liu , Jing Huo , Yiyu Chen , Yang Gao

Human parsing has been extensively studied recently due to its wide applications in many important scenarios. Mainstream fashion parsing models focus on parsing the high-resolution and clean images. However, directly applying the parsers…

Computer Vision and Pattern Recognition · Computer Science 2018-01-09 Si Liu , Yao Sun , Defa Zhu , Guanghui Ren , Yu Chen , Jiashi Feng , Jizhong Han

Unsupervised domain adaption aims to learn a powerful classifier for the target domain given a labeled source data set and an unlabeled target data set. To alleviate the effect of `domain shift', the major challenge in domain adaptation,…

Computer Vision and Pattern Recognition · Computer Science 2018-12-03 Yexun Zhang , Ya Zhang , Yanfeng Wang , Qi Tian

Interactive imitation learning is an efficient, model-free method through which a robot can learn a task by repetitively iterating an execution of a learning policy and a data collection by querying human demonstrations. However, deploying…

Robotics · Computer Science 2024-02-22 Hanbit Oh , Takamitsu Matsubara

We propose a general framework for causal Imitation Learning (IL) with hidden confounders, which subsumes several existing settings. Our framework accounts for two types of hidden confounders: (a) variables observed by the expert but not by…

Machine Learning · Computer Science 2026-02-02 Daqian Shao , Thomas Kleine Buening , Marta Kwiatkowska

Transferring learned skills across diverse situations remains a fundamental challenge for autonomous agents, particularly when agents are not allowed to interact with an exact target setup. While prior approaches have predominantly focused…

Machine Learning · Computer Science 2024-07-25 Hayato Watahiki , Ryo Iwase , Ryosuke Unno , Yoshimasa Tsuruoka

Model-based imitation learning (MBIL) is a popular reinforcement learning method that improves sample efficiency on high-dimension input sources, such as images and videos. Following the convention of MBIL research, existing algorithms are…

Machine Learning · Computer Science 2023-06-21 Shenghua Wan , Yucen Wang , Minghao Shao , Ruying Chen , De-Chuan Zhan

The introduction of the generative adversarial imitation learning (GAIL) algorithm has spurred the development of scalable imitation learning approaches using deep neural networks. Many of the algorithms that followed used a similar…

Machine Learning · Computer Science 2023-09-21 Kai Arulkumaran , Dan Ogawa Lillrank

Imitation Learning (IL) techniques aim to replicate human behaviors in specific tasks. While IL has gained prominence due to its effectiveness and efficiency, traditional methods often focus on datasets collected from experts to produce a…

Machine Learning · Computer Science 2025-04-28 Mathieu Petitbois , Rémy Portelas , Sylvain Lamprier , Ludovic Denoyer

Leveraging datasets available to learn a model with high generalization ability to unseen domains is important for computer vision, especially when the unseen domain's annotated data are unavailable. We study a novel and practical problem…

Computer Vision and Pattern Recognition · Computer Science 2021-04-09 Yang Shu , Zhangjie Cao , Chenyu Wang , Jianmin Wang , Mingsheng Long

Adversarial Imitation Learning (AIL) is a broad family of imitation learning methods designed to mimic expert behaviors from demonstrations. While AIL has shown state-of-the-art performance on imitation learning with only small number of…

Machine Learning · Computer Science 2020-02-21 Ruohan Wang , Carlo Ciliberto , Pierluigi Amadori , Yiannis Demiris

Deep neural networks perform remarkably well in close-world scenarios. However, novel classes emerged continually in real applications, making it necessary to learn incrementally. Class-incremental learning (CIL) aims to gradually recognize…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Wenzhuo Liu , Fei Zhu , Cheng-Lin Liu

Unsupervised cross-domain action recognition aims at adapting the model trained on an existing labeled source domain to a new unlabeled target domain. Most existing methods solve the task by directly aligning the feature distributions of…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Yuan Qing , Naixing Wu , Shaohua Wan , Lixin Duan

Generative Adversarial Imitation Learning (GAIL) trains a generative policy to mimic a demonstrator. It uses on-policy Reinforcement Learning (RL) to optimize a reward signal derived from a GAN-like discriminator. A major drawback of GAIL…

Machine Learning · Computer Science 2024-10-30 Tianjiao Luo , Tim Pearce , Huayu Chen , Jianfei Chen , Jun Zhu

Domain generalization approaches aim to learn a domain invariant prediction model for unknown target domains from multiple training source domains with different distributions. Significant efforts have recently been committed to broad…

Computer Vision and Pattern Recognition · Computer Science 2021-08-23 Mohammad Mahfujur Rahman , Clinton Fookes , Sridha Sridharan

We observe that several existing policy gradient methods (such as vanilla policy gradient, PPO, A2C) may suffer from overly large gradients when the current policy is close to deterministic (even in some very simple environments), leading…

Machine Learning · Computer Science 2019-11-19 Chuheng Zhang , Yuanqi Li , Jian Li

Unsupervised domain adaptation aims to transfer knowledge from a labeled source domain to an unlabeled target domain. Previous methods focus on learning domain-invariant features to decrease the discrepancy between the feature distributions…

Machine Learning · Computer Science 2021-06-30 Yuntao Du , Yinghao Chen , Fengli Cui , Xiaowen Zhang , Chongjun Wang