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In this work, we consider one-shot imitation learning for object rearrangement tasks, where an AI agent needs to watch a single expert demonstration and learn to perform the same task in different environments. To achieve a strong…

Machine Learning · Computer Science 2022-11-29 Aviv Netanyahu , Tianmin Shu , Joshua Tenenbaum , Pulkit Agrawal

Simulation is increasingly being used for generating large labelled datasets in many machine learning problems. Recent methods have focused on adjusting simulator parameters with the goal of maximising accuracy on a validation task, usually…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Harkirat Singh Behl , Atılım Güneş Baydin , Ran Gal , Philip H. S. Torr , Vibhav Vineet

Policy gradient reinforcement learning (RL) algorithms have achieved impressive performance in challenging learning tasks such as continuous control, but suffer from high sample complexity. Experience replay is a commonly used approach to…

Machine Learning · Statistics 2020-02-19 Saad Mohamad , Giovanni Montana

We seek to align agent policy with human expert behavior in a reinforcement learning (RL) setting, without any prior knowledge about dynamics, reward function, and unsafe states. There is a human expert knowing the rewards and unsafe states…

Machine Learning · Computer Science 2020-01-01 Daniel Hsu

Active learning (AL) algorithms may achieve better performance with fewer data because the model guides the data selection process. While many algorithms have been proposed, there is little study on what the optimal AL algorithm looks like,…

Machine Learning · Computer Science 2021-02-23 Yilun Zhou , Adithya Renduchintala , Xian Li , Sida Wang , Yashar Mehdad , Asish Ghoshal

Imitation learning often needs a large demonstration set in order to handle the full range of situations that an agent might find itself in during deployment. However, collecting expert demonstrations can be expensive. Recent work in…

Many matching markets feature unknown, dynamic arrivals of agents that must match immediately. A caseworker must match an abused child to a foster home, a hospital must assign a patient in critical condition to a room, or a city must place…

Theoretical Economics · Economics 2026-04-15 Terence Highsmith

Simulating nuanced user experiences within complex interactive search systems poses distinct challenge for traditional methodologies, which often rely on static user proxies or, more recently, on standalone large language model (LLM) agents…

Information Retrieval · Computer Science 2026-03-02 Saber Zerhoudi , Michael Granitzer

Supervised machine learning and deep learning require a large amount of labeled data, which data scientists obtain in a manual, and time-consuming annotation process. To mitigate this challenge, Active Learning (AL) proposes promising data…

Computation and Language · Computer Science 2023-08-08 Philipp Kohl , Nils Freyer , Yoka Krämer , Henri Werth , Steffen Wolf , Bodo Kraft , Matthias Meinecke , Albert Zündorf

In Imitation Learning (IL), utilizing suboptimal and heterogeneous demonstrations presents a substantial challenge due to the varied nature of real-world data. However, standard IL algorithms consider these datasets as homogeneous, thereby…

Machine Learning · Computer Science 2024-12-16 Mark Beliaev , Ramtin Pedarsani

Over the last years, advancements in deep learning models for computer vision have led to a dramatic improvement in their image classification accuracy. However, models with a higher accuracy in the task they were trained on do not…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Fritz Günther , Marco Marelli , Marco Alessandro Petilli

Imitation learning aims to learn a policy from observing expert demonstrations without access to reward signals from environments. Generative adversarial imitation learning (GAIL) formulates imitation learning as adversarial learning,…

Machine Learning · Computer Science 2024-11-27 Chun-Mao Lai , Hsiang-Chun Wang , Ping-Chun Hsieh , Yu-Chiang Frank Wang , Min-Hung Chen , Shao-Hua Sun

Generative adversarial imitation learning (GAIL) has attracted increasing attention in the field of robot learning. It enables robots to learn a policy to achieve a task demonstrated by an expert while simultaneously estimating the reward…

Machine Learning · Computer Science 2019-11-04 Kyoichiro Kobayashi , Takato Horii , Ryo Iwaki , Yukie Nagai , Minoru Asada

Famous for its superior performance, deep learning (DL) has been popularly used within many applications, which also at the same time attracts various threats to the models. One primary threat is from adversarial attacks. Researchers have…

Cryptography and Security · Computer Science 2022-09-29 Zizhuang Deng , Kai Chen , Guozhu Meng , Xiaodong Zhang , Ke Xu , Yao Cheng

We present MobileGym, a browser-hosted, lightweight, fully controllable environment for everyday mobile use, targeting interaction fidelity without replicating proprietary backends. It enables two capabilities previously out of reach for…

Artificial Intelligence · Computer Science 2026-05-28 Dingbang Wu , Rui Hao , Haiyang Wang , Shuzhe Wu , Han Xiao , Zhenghong Li , Bojiang Zhou , Zheng Ju , Zichen Liu , Lue Fan , Zhaoxiang Zhang

Simulations of artificial stock markets were considered as early as 1964 and multi-agent ones were introduced as early as 1989. Starting the early 90's, collaborations of economists and physicists produced increasingly realistic simulation…

Multiagent Systems · Computer Science 2007-05-23 Gilles Daniel , Lev Muchnik , Sorin Solomon

We present an approach for agents to learn representations of a global map from sensor data, to aid their exploration in new environments. To achieve this, we embed procedures mimicking that of traditional Simultaneous Localization and…

Machine Learning · Computer Science 2021-01-01 Jingwei Zhang , Lei Tai , Ming Liu , Joschka Boedecker , Wolfram Burgard

Generalization performance of trained computer vision systems that use computer graphics (CG) generated data is not yet effective due to the concept of 'domain-shift' between virtual and real data. Although simulated data augmented with a…

Computer Vision and Pattern Recognition · Computer Science 2017-07-10 V S R Veeravasarapu , Constantin Rothkopf , Ramesh Visvanathan

Optimization can be found in many real-life applications. Designing an effective algorithm for a specific optimization problem typically requires a tedious amount of effort from human experts with domain knowledge and algorithm design…

Neural and Evolutionary Computing · Computer Science 2023-11-28 Fei Liu , Xialiang Tong , Mingxuan Yuan , Qingfu Zhang

Despite the great development of multirobot technologies, efficiently and collaboratively exploring an unknown environment is still a big challenge. In this paper, we propose AIM-Mapping, a Asymmetric InforMation Enhanced Mapping framework.…

Multiagent Systems · Computer Science 2025-10-01 Jiyu Cheng , Junhui Fan , Xiaolei Li , Paul L. Rosin , Yibin Li , Wei Zhang