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Problems dealing with the ability to take an action that affects the states of state-dependent communication channels are of timely interest and importance. Therefore, we extend the study of action-dependent channels, which until now…

Information Theory · Computer Science 2016-11-18 Lior Dikstein , Haim H. Permuter , Shlomo Shamai

Learning procedural-aware video representations is a key step towards building agents that can reason about and execute complex tasks. Existing methods typically address this problem by aligning visual content with textual descriptions at…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Jinghan Zhao , Yifei Huang , Feng Lu

The evolution toward 6G networks demands a fundamental shift from bit-centric transmission to semantic-aware communication that emphasizes task-relevant information. This work introduces TOAST (Task-Oriented Adaptive Semantic Transmission),…

Machine Learning · Computer Science 2025-06-30 Sheng Yun , Jianhua Pei , Ping Wang

Offline reinforcement learning leverages previously-collected offline datasets to learn optimal policies with no necessity to access the real environment. Such a paradigm is also desirable for multi-agent reinforcement learning (MARL)…

Machine Learning · Computer Science 2022-06-13 Linghui Meng , Muning Wen , Yaodong Yang , Chenyang Le , Xiyun Li , Weinan Zhang , Ying Wen , Haifeng Zhang , Jun Wang , Bo Xu

Video analytics systems designed for deployment in outdoor conditions can be vulnerable to many environmental changes, particularly changes in shadow. Existing works have shown that shadow and its introduced distribution shift can cause…

Image and Video Processing · Electrical Eng. & Systems 2024-10-08 Shengtai Ju , Amy R. Reibman

Temporal Action Detection (TAD) aims to identify and localize actions by determining their starting and ending frames within untrimmed videos. Recent Structured State-Space Models such as Mamba have demonstrated potential in TAD due to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Hui Lu , Yi Yu , Shijian Lu , Deepu Rajan , Boon Poh Ng , Alex C. Kot , Xudong Jiang

Smart home solutions increasingly rely on a variety of sensors for behavioral analytics and activity recognition to provide context-aware applications and personalized care. Optimizing the sensor network is one of the most important…

Human-Computer Interaction · Computer Science 2021-01-05 Yuting Zhan , Hamed Haddadi

The main progress for action segmentation comes from densely-annotated data for fully-supervised learning. Since manual annotation for frame-level actions is time-consuming and challenging, we propose to exploit auxiliary unlabeled videos,…

Computer Vision and Pattern Recognition · Computer Science 2021-04-19 Min-Hung Chen , Baopu Li , Yingze Bao , Ghassan AlRegib

Reinforcement Learning (RL) based methods have seen their paramount successes in solving serial decision-making and control problems in recent years. For conventional RL formulations, Markov Decision Process (MDP) and state-action-value…

Machine Learning · Computer Science 2020-06-09 Ziyao Zhang , Liang Ma , Kin K. Leung , Konstantinos Poularakis , Mudhakar Srivatsa

Few-shot image classification requires the classifier to robustly cope with unseen classes even if there are only a few samples for each class. Recent advances benefit from the meta-learning process where episodic tasks are formed to train…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Da Chen , Yongliang Yang , Zunlei Feng , Xiang Wu , Mingli Song , Wenbin Li , Yuan He , Hui Xue , Feng Mao

Transformer models have achieved promising performances in point cloud segmentation. However, most existing attention schemes provide the same feature learning paradigm for all points equally and overlook the enormous difference in size…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Junjie Zhou , Yongping Xiong , Chinwai Chiu , Fangyu Liu , Xiangyang Gong

Human action recognition is a challenging problem, particularly when there is high variability in factors such as subject appearance, backgrounds and viewpoint. While deep neural networks (DNNs) have been shown to perform well on action…

Computer Vision and Pattern Recognition · Computer Science 2024-08-05 Arun V. Reddy , Ketul Shah , William Paul , Rohita Mocharla , Judy Hoffman , Kapil D. Katyal , Dinesh Manocha , Celso M. de Melo , Rama Chellappa

Robots can learn to do complex tasks in simulation, but often, learned behaviors fail to transfer well to the real world due to simulator imperfections (the reality gap). Some existing solutions to this sim-to-real problem, such as Grounded…

Robotics · Computer Science 2020-08-05 Haresh Karnan , Siddharth Desai , Josiah P. Hanna , Garrett Warnell , Peter Stone

A fundamental challenge in embodied intelligence is developing expressive and compact state representations for efficient world modeling and decision making. However, existing methods often fail to achieve this balance, yielding…

Robotics · Computer Science 2026-04-14 Mingyu Liu , Jiuhe Shu , Hui Chen , Zeju Li , Canyu Zhao , Jiange Yang , Shenyuan Gao , Hao Chen , Chunhua Shen

In recent years multi-label, multi-class video action recognition has gained significant popularity. While reasoning over temporally connected atomic actions is mundane for intelligent species, standard artificial neural networks (ANN)…

Computer Vision and Pattern Recognition · Computer Science 2022-12-22 Akash Singh , Tom De Schepper , Kevin Mets , Peter Hellinckx , Jose Oramas , Steven Latre

Surgical scene understanding is a key prerequisite for contextaware decision support in the operating room. While deep learning-based approaches have already reached or even surpassed human performance in various fields, the task of…

We use a mean-field-based transformer model to theoretically investigate how auxiliary variables, such as positional encoding, prevent mode collapse of self-attention mechanisms. The use of mean-field transformers to analyze the properties…

Machine Learning · Computer Science 2026-05-29 Masaaki Imaizumi , Masanori Koyama , Noboru Isobe , Kohei Hayashi

Weakly-supervised Temporal Action Localization (W-TAL) aims to classify and localize all action instances in an untrimmed video under only video-level supervision. However, without frame-level annotations, it is challenging for W-TAL…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Yuanhao Zhai , Le Wang , Wei Tang , Qilin Zhang , Junsong Yuan , Gang Hua

Symbols representing abstract states such as "dish in dishwasher" or "cup on table" allow robots to reason over long horizons by hiding details unnecessary for high-level planning. Current methods for learning to identify symbolic states in…

Robotics · Computer Science 2022-03-07 Toki Migimatsu , Jeannette Bohg

A large body of recent work targets semantically conditioned image generation. Most such methods focus on the narrower task of pose transfer and ignore the more challenging task of subject transfer that consists in not only transferring the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Nicolas Dufour , David Picard , Vicky Kalogeiton