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Related papers: Co-Imitation Learning without Expert Demonstration

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Imitation learning is the task of replicating expert policy from demonstrations, without access to a reward function. This task becomes particularly challenging when the expert exhibits a mixture of behaviors. Prior work has introduced…

Machine Learning · Computer Science 2022-05-10 Arash Vahabpour , Tianyi Wang , Qiujing Lu , Omead Pooladzandi , Vwani Roychowdhury

Reinforcement Learning (RL) requires a large amount of exploration especially in sparse-reward settings. Imitation Learning (IL) can learn from expert demonstrations without exploration, but it never exceeds the expert's performance and is…

Machine Learning · Computer Science 2021-07-27 Ryoya Ogishima , Izumi Karino , Yasuo Kuniyoshi

Imitation learning allows agents to learn complex behaviors from demonstrations. However, learning a complex vision-based task may require an impractical number of demonstrations. Meta-imitation learning is a promising approach towards…

Imitation learning (IL) is a framework that learns to imitate expert behavior from demonstrations. Recently, IL shows promising results on high dimensional and control tasks. However, IL typically suffers from sample inefficiency in terms…

Machine Learning · Computer Science 2021-11-24 Lihua Zhang

Offline reinforcement learning (RL) tasks require the agent to learn from a pre-collected dataset with no further interactions with the environment. Despite the potential to surpass the behavioral policies, RL-based methods are generally…

Machine Learning · Computer Science 2022-01-13 Minghuan Liu , Hanye Zhao , Zhengyu Yang , Jian Shen , Weinan Zhang , Li Zhao , Tie-Yan Liu

Learning to imitate expert behavior from demonstrations can be challenging, especially in environments with high-dimensional, continuous observations and unknown dynamics. Supervised learning methods based on behavioral cloning (BC) suffer…

Machine Learning · Computer Science 2019-09-27 Siddharth Reddy , Anca D. Dragan , Sergey Levine

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

Imitation learning is the problem of recovering an expert policy without access to a reward signal. Behavior cloning and GAIL are two widely used methods for performing imitation learning. Behavior cloning converges in a few iterations but…

Machine Learning · Computer Science 2020-11-11 Rohit Jena , Changliu Liu , Katia Sycara

Learning from demonstrations is a useful way to transfer a skill from one agent to another. While most imitation learning methods aim to mimic an expert skill by following the demonstration step-by-step, imitating every step in the…

Robotics · Computer Science 2019-12-18 Youngwoon Lee , Edward S. Hu , Zhengyu Yang , Joseph J. Lim

Imitation Learning (IL) algorithms offer an efficient way to train an agent by mimicking an expert's behavior without requiring a reward function. IL algorithms often necessitate access to state and action information from expert…

Machine Learning · Computer Science 2025-09-25 Returaj Burnwal , Hriday Mehta , Nirav Pravinbhai Bhatt , Balaraman Ravindran

Imitation learning enables agents to reuse and adapt the hard-won expertise of others, offering a solution to several key challenges in learning behavior. Although it is easy to observe behavior in the real-world, the underlying actions may…

Machine Learning · Computer Science 2021-07-09 Andrew Jaegle , Yury Sulsky , Arun Ahuja , Jake Bruce , Rob Fergus , Greg Wayne

Most existing imitation learning approaches assume the demonstrations are drawn from experts who are optimal, but relaxing this assumption enables us to use a wider range of data. Standard imitation learning may learn a suboptimal policy…

Machine Learning · Computer Science 2022-01-27 Songyuan Zhang , Zhangjie Cao , Dorsa Sadigh , Yanan Sui

Imitation learning has been a trend recently, yet training a generalist agent across multiple tasks still requires large-scale expert demonstrations, which are costly and labor-intensive to collect. To address the challenge of limited…

Robotics · Computer Science 2025-09-25 Yifan Ye , Jun Cen , Jing Chen , Zhihe Lu

Humans often learn how to perform tasks via imitation: they observe others perform a task, and then very quickly infer the appropriate actions to take based on their observations. While extending this paradigm to autonomous agents is a…

Artificial Intelligence · Computer Science 2018-05-15 Faraz Torabi , Garrett Warnell , Peter Stone

Compared to reinforcement learning, imitation learning (IL) is a powerful paradigm for training agents to learn control policies efficiently from expert demonstrations. However, in most cases, obtaining demonstration data is costly and…

Machine Learning · Computer Science 2019-03-20 Naijun Liu , Tao Lu , Yinghao Cai , Boyao Li , Shuo Wang

Imitation can be viewed as a means of enhancing learning in multiagent environments. It augments an agent's ability to learn useful behaviors by making intelligent use of the knowledge implicit in behaviors demonstrated by cooperative…

Machine Learning · Computer Science 2011-06-06 C. Boutilier , B. Price

Reinforcement learning (RL) provides a powerful framework for decision-making, but its application in practice often requires a carefully designed reward function. Adversarial Imitation Learning (AIL) sheds light on automatic policy…

Machine Learning · Computer Science 2024-02-05 Kaifeng Zhang , Rui Zhao , Ziming Zhang , Yang Gao

Imitation learning (IL) aims to learn an optimal policy from demonstrations. However, such demonstrations are often imperfect since collecting optimal ones is costly. To effectively learn from imperfect demonstrations, we propose a novel…

Machine Learning · Computer Science 2019-01-31 Yueh-Hua Wu , Nontawat Charoenphakdee , Han Bao , Voot Tangkaratt , Masashi Sugiyama

We study the problem of offline Imitation Learning (IL) where an agent aims to learn an optimal expert behavior policy without additional online environment interactions. Instead, the agent is provided with a supplementary offline dataset…

Machine Learning · Computer Science 2022-07-21 Haoran Xu , Xianyuan Zhan , Honglei Yin , Huiling Qin

In this paper, we consider cross-domain imitation learning (CDIL) in which an agent in a target domain learns a policy to perform well in the target domain by observing expert demonstrations in a source domain without accessing any reward…

Machine Learning · Computer Science 2020-09-28 Sungho Choi , Seungyul Han , Woojun Kim , Youngchul Sung
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