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With the rapid adoption of machine learning techniques for large-scale applications in science and engineering comes the convergence of two grand challenges in visualization. First, the utilization of black box models (e.g., deep neural…

Analyzing, understanding, and describing human behavior is advantageous in different settings, such as web browsing or traffic navigation. Understanding human behavior naturally helps to improve and optimize the underlying infrastructure or…

Machine Learning · Computer Science 2024-01-09 Tobias Koopmann , Jan Pfister , André Markus , Astrid Carolus , Carolin Wienrich , Andreas Hotho

The deepfake threats to society and cybersecurity have provoked significant public apprehension, driving intensified efforts within the realm of deepfake video detection. Current video-level methods are mostly based on {3D CNNs} resulting…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Yuting Xu , Jian Liang , Lijun Sheng , Xiao-Yu Zhang

Temporal Action Localization (TAL) aims to detect the start and end timestamps of actions in a video. However, the training of TAL models requires a substantial amount of manually annotated data. Data programming is an efficient method to…

Human-Computer Interaction · Computer Science 2025-05-26 Yuchen He , Jianbing Lv , Liqi Cheng , Lingyu Meng , Dazhen Deng , Yingcai Wu

User modeling is crucial to understanding user behavior and essential for improving user experience and personalized recommendations. When users interact with software, vast amounts of command sequences are generated through logging and…

Artificial Intelligence · Computer Science 2022-08-01 Hang Chu , Amir Hosein Khasahmadi , Karl D. D. Willis , Fraser Anderson , Yaoli Mao , Linh Tran , Justin Matejka , Jo Vermeulen

The rapid expansion of global cloud wide-area networks (WANs) has posed a challenge for commercial optimization engines to efficiently solve network traffic engineering (TE) problems at scale. Existing acceleration strategies decompose TE…

Networking and Internet Architecture · Computer Science 2024-05-21 Zhiying Xu , Francis Y. Yan , Rachee Singh , Justin T. Chiu , Alexander M. Rush , Minlan Yu

Context retrieval systems for LLM inference face a critical challenge: high retrieval latency creates a fundamental tension between waiting for complete context (poor time-to-first-token) and proceeding without it (reduced quality).…

Databases · Computer Science 2026-05-19 Rajveer Bachkaniwala , Chengqi Luo , Richard So , Divya Mahajan , Kexin Rong

A large amount of data resulting from trajectories of moving objects activities are collected thanks to localization based services and some associated automated processes. Trajectories data can be used either for transactional and analysis…

Databases · Computer Science 2011-02-23 Wided Oueslati , Jalel Akaichi

Multitask learning (MTL) aims to develop a unified model that can handle a set of closely related tasks simultaneously. By optimizing the model across multiple tasks, MTL generally surpasses its non-MTL counterparts in terms of…

Machine Learning · Computer Science 2023-10-11 Chin-Chia Michael Yeh , Xin Dai , Yan Zheng , Junpeng Wang , Huiyuan Chen , Yujie Fan , Audrey Der , Zhongfang Zhuang , Liang Wang , Wei Zhang

Recently, skeleton based action recognition gains more popularity due to cost-effective depth sensors coupled with real-time skeleton estimation algorithms. Traditional approaches based on handcrafted features are limited to represent the…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Hongsong Wang , Liang Wang

Self-supervised learning has demonstrated remarkable capability in representation learning for skeleton-based action recognition. Existing methods mainly focus on applying global data augmentation to generate different views of the skeleton…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Yujie Zhou , Haodong Duan , Anyi Rao , Bing Su , Jiaqi Wang

Visual topological navigation has been revitalized recently thanks to the advancement of deep learning that substantially improves robot perception. However, the scalability and reliability issue remain challenging due to the complexity and…

Robotics · Computer Science 2020-03-20 Xiangyun Meng , Nathan Ratliff , Yu Xiang , Dieter Fox

Recent Large Vision-Language Models (LVLMs) demonstrate remarkable capabilities in image understanding and natural language generation. However, current approaches focus predominantly on global image understanding, struggling to simulate…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Fan Yang , Shurong Zheng , Hongyin Zhao , Yufei Zhan , Xin Li , Yousong Zhu , Chaoyang Zhao Ming Tang , Jinqiao Wang

Dynamic graph modeling has recently attracted much attention due to its extensive applications in many real-world scenarios, such as recommendation systems, financial transactions, and social networks. Although many works have been proposed…

Machine Learning · Computer Science 2021-05-18 Lu Wang , Xiaofu Chang , Shuang Li , Yunfei Chu , Hui Li , Wei Zhang , Xiaofeng He , Le Song , Jingren Zhou , Hongxia Yang

This paper presents a method to reconstruct dense semantic trajectory stream of human interactions in 3D from synchronized multiple videos. The interactions inherently introduce self-occlusion and illumination/appearance/shape changes,…

Computer Vision and Pattern Recognition · Computer Science 2017-12-06 Jae Shin Yoon , Ziwei Li , Hyun Soo Park

In streaming scenarios, models must learn continuously, adapting to concept drifts without erasing previously acquired knowledge. However, existing research communities address these challenges in isolation. Continual Learning (CL) focuses…

Machine Learning · Computer Science 2025-12-15 Afonso Lourenço , João Gama , Eric P. Xing , Goreti Marreiros

Learning representation from unlabeled time series data is a challenging problem. Most existing self-supervised and unsupervised approaches in the time-series domain do not capture low and high-frequency features at the same time. Further,…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Vandan Gorade , Azad Singh , Deepak Mishra

Real world data often have a long-tailed and open-ended distribution. A practical recognition system must classify among majority and minority classes, generalize from a few known instances, and acknowledge novelty upon a never seen…

Computer Vision and Pattern Recognition · Computer Science 2019-04-17 Ziwei Liu , Zhongqi Miao , Xiaohang Zhan , Jiayun Wang , Boqing Gong , Stella X. Yu

Linear temporal logic (LTL) is a specification language for finite sequences (called traces) widely used in program verification, motion planning in robotics, process mining, and many other areas. We consider the problem of learning LTL…

Artificial Intelligence · Computer Science 2026-01-22 Ritam Raha , Rajarshi Roy , Nathanaël Fijalkow , Daniel Neider

In today's connected world, the generation of massive streaming data across diverse domains has become commonplace. In the presence of concept drift, class imbalance, label scarcity, and new class emergence, they jointly degrade…

Machine Learning · Computer Science 2026-02-11 Jin Li , Kleanthis Malialis , Marios Polycarpou