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Reinforcement learning has significantly enhanced the reasoning capabilities of Large Language Models (LLMs) in complex problem-solving tasks. Recently, the introduction of DeepSeek R1 has inspired a surge of interest in leveraging…

Machine Learning · Computer Science 2025-08-07 Jinghang Han , Jiawei Chen , Hang Shao , Hao Ma , Mingcheng Li , Xintian Shen , Lihao Zheng , Wei Chen , Tao Wei , Lihua Zhang

Robotic task instructions often involve a referred object that the robot must locate (ground) within the environment. While task intent understanding is an essential part of natural language understanding, less effort is made to resolve…

Robotics · Computer Science 2022-07-29 Pradip Pramanick , Chayan Sarkar , Sayan Paul , Ruddra dev Roychoudhury , Brojeshwar Bhowmick

To learn from data collected in diverse dynamics, Imitation from Observation (IfO) methods leverage expert state trajectories based on the premise that recovering expert state distributions in other dynamics facilitates policy learning in…

Machine Learning · Computer Science 2025-03-11 Zhenghai Xue , Lang Feng , Jiacheng Xu , Kang Kang , Xiang Wen , Bo An , Shuicheng Yan

We consider the task of building strong but human-like policies in multi-agent decision-making problems, given examples of human behavior. Imitation learning is effective at predicting human actions but may not match the strength of expert…

Multiagent Systems · Computer Science 2022-02-18 Athul Paul Jacob , David J. Wu , Gabriele Farina , Adam Lerer , Hengyuan Hu , Anton Bakhtin , Jacob Andreas , Noam Brown

Object removal requires eliminating not only the target object but also its associated visual effects such as shadows and reflections. However, diffusion-based inpainting and removal methods often introduce artifacts, hallucinate contents,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Jixin Zhao , Zhouxia Wang , Peiqing Yang , Shangchen Zhou

Offline meta-reinforcement learning (OMRL) utilizes pre-collected offline datasets to enhance the agent's generalization ability on unseen tasks. However, the context shift problem arises due to the distribution discrepancy between the…

Machine Learning · Computer Science 2023-11-08 Yunkai Gao , Rui Zhang , Jiaming Guo , Fan Wu , Qi Yi , Shaohui Peng , Siming Lan , Ruizhi Chen , Zidong Du , Xing Hu , Qi Guo , Ling Li , Yunji Chen

Imitation learning is the process by which one agent tries to learn how to perform a certain task using information generated by another, often more-expert agent performing that same task. Conventionally, the imitator has access to both…

Robotics · Computer Science 2019-06-20 Faraz Torabi , Garrett Warnell , Peter Stone

World models have been developed to support sample-efficient deep reinforcement learning agents. However, it remains challenging for world models to accurately replicate environments that are high-dimensional, non-stationary, and composed…

Machine Learning · Computer Science 2026-03-31 Yosuke Nishimoto , Takashi Matsubara

Agents that understand objects and their interactions can learn policies that are more robust and transferable. However, most object-centric RL methods factor state by individual objects while leaving interactions implicit. We introduce the…

Machine Learning · Computer Science 2025-11-05 Fan Feng , Phillip Lippe , Sara Magliacane

The advances in unsupervised object-centric representation learning have significantly improved its application to downstream tasks. Recent works highlight that disentangled object representations can aid policy learning in image-based,…

Artificial Intelligence · Computer Science 2025-03-21 Leonid Ugadiarov , Vitaliy Vorobyov , Aleksandr I. Panov

Imitation learning (IL) aims to mimic the behavior of an expert in a sequential decision making task by learning from demonstrations, and has been widely applied to robotics, autonomous driving, and autoregressive text generation. The…

Machine Learning · Computer Science 2024-12-03 Dylan J. Foster , Adam Block , Dipendra Misra

We consider the unsupervised scene adaptation problem of learning from both labeled source data and unlabeled target data. Existing methods focus on minoring the inter-domain gap between the source and target domains. However, the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-08 Zhedong Zheng , Yi Yang

Imitation learning uses data for training policies to solve complex tasks. However, when the training data is collected from human demonstrators, it often leads to multimodal distributions because of the variability in human actions. Most…

Machine Learning · Computer Science 2023-11-01 Denis Blessing , Onur Celik , Xiaogang Jia , Moritz Reuss , Maximilian Xiling Li , Rudolf Lioutikov , Gerhard Neumann

Behavior cloning methods for robot learning suffer from poor generalization due to limited data support beyond expert demonstrations. Recent approaches leveraging video prediction models have shown promising results by learning rich…

Learning robust driving policies from large-scale, real-world datasets is a central challenge in autonomous driving, as online data collection is often unsafe and impractical. While Behavioral Cloning (BC) offers a straightforward approach…

Machine Learning · Computer Science 2025-08-28 Antonio Guillen-Perez

Object rearrangement is the problem of enabling a robot to identify the correct object placement in a complex environment. Prior work on object rearrangement has explored a diverse set of techniques for following user instructions to…

Robotics · Computer Science 2023-10-03 Kartik Ramachandruni , Max Zuo , Sonia Chernova

Offline reinforcement learning, by learning from a fixed dataset, makes it possible to learn agent behaviors without interacting with the environment. However, depending on the quality of the offline dataset, such pre-trained agents may…

Machine Learning · Computer Science 2022-10-26 Yi Zhao , Rinu Boney , Alexander Ilin , Juho Kannala , Joni Pajarinen

Traditionally, quantization is designed to minimize the reconstruction error of a data source. When considering downstream classification tasks, other measures of distortion can be of interest; such as the 0-1 classification loss.…

Machine Learning · Computer Science 2021-07-22 Daniel Severo , Elad Domanovitz , Ashish Khisti

Learning policies via preference-based reward learning is an increasingly popular method for customizing agent behavior, but has been shown anecdotally to be prone to spurious correlations and reward hacking behaviors. While much prior work…

Machine Learning · Computer Science 2023-03-21 Jeremy Tien , Jerry Zhi-Yang He , Zackory Erickson , Anca D. Dragan , Daniel S. Brown

Online Continual Learning (OCL) models continuously adapt to nonstationary data streams, usually without task information. These settings are complex and many traditional CL methods fail, while online methods (mainly replay-based) suffer…

Machine Learning · Computer Science 2025-02-05 Edoardo Urettini , Antonio Carta