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Nowadays, deep learning is widely applied to extract features for similarity computation in person re-identification (re-ID) and have achieved great success. However, due to the non-overlapping between training and testing IDs, the…

计算机视觉与模式识别 · 计算机科学 2022-01-31 Yuqi Zhang , Qian Qi , Chong Liu , Weihua Chen , Fan Wang , Hao Li , Rong Jin

Human Activity Recognition (HAR) simply refers to the capacity of a machine to perceive human actions. HAR is a prominent application of advanced Machine Learning and Artificial Intelligence techniques that utilize computer vision to…

计算机视觉与模式识别 · 计算机科学 2021-01-19 Niloy Sikder , Md. Sanaullah Chowdhury , Abu Shamim Mohammad Arif , Abdullah-Al Nahid

This paper presents a novel approach for automatic recognition of human activities for video surveillance applications. We propose to represent an activity by a combination of category components, and demonstrate that this approach offers…

计算机视觉与模式识别 · 计算机科学 2015-03-03 Weiyao Lin , Ming-Ting Sun , Radha Poovendran , Zhengyou Zhang

Parameter regularization or allocation methods are effective in overcoming catastrophic forgetting in lifelong learning. However, they solve all tasks in a sequence uniformly and ignore the differences in the learning difficulty of…

机器学习 · 计算机科学 2023-04-12 Wenjin Wang , Yunqing Hu , Qianglong Chen , Yin Zhang

Human Activity Recognition (HAR) from wearable sensor data identifies movements or activities in unconstrained environments. HAR is a challenging problem as it presents great variability across subjects. Obtaining large amounts of labelled…

计算机视觉与模式识别 · 计算机科学 2022-02-15 Arttu Lämsä , Jaakko Tervonen , Jussi Liikka , Constantino Álvarez Casado , Miguel Bordallo López

Recently, deep learning has represented an important research trend in human activity recognition (HAR). In particular, deep convolutional neural networks (CNNs) have achieved state-of-the-art performance on various HAR datasets. For deep…

计算机视觉与模式识别 · 计算机科学 2020-06-16 Xin Cheng , Lei Zhang , Yin Tang , Yue Liu , Hao Wu , Jun He

We propose a simple yet effective alternative to reward normalization in policy gradient reinforcement learning by integrating a 1D Kalman filter for online reward estimation. Instead of relying on fixed heuristics, our method recursively…

机器学习 · 计算机科学 2026-04-28 Zixuan Xia , Quanxi Li

Person re-identification (re-id) is a critical problem in video analytics applications such as security and surveillance. The public release of several datasets and code for vision algorithms has facilitated rapid progress in this area over…

计算机视觉与模式识别 · 计算机科学 2018-02-15 Srikrishna Karanam , Mengran Gou , Ziyan Wu , Angels Rates-Borras , Octavia Camps , Richard J. Radke

World models simulate dynamic environments, enabling agents to interact with diverse input modalities. Although recent advances have improved the visual quality and temporal consistency of video world models, their ability of accurately…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Yang Ye , Tianyu He , Shuo Yang , Jiang Bian

Person reidentification (ReID) refers to the task of verifying the identity of a pedestrian observed from nonoverlapping views in a surveillance camera network. It has recently been validated that reranking can achieve remarkable…

计算机视觉与模式识别 · 计算机科学 2020-05-21 Ruo-Pei Guo , Chun-Guang Li , Yonghua Li , Jiaru Lin , Jun Guo

Modern large-scale recommender systems employ multi-stage ranking funnel (Retrieval, Pre-ranking, Ranking) to balance engagement and computational constraints (latency, CPU). However, the initial retrieval stage, often relying on efficient…

信息检索 · 计算机科学 2025-06-10 Amit Jaspal , Qian Dang , Ajantha Ramineni

Human activity recognition, facilitated by smart devices, has recently garnered significant attention. Deep learning algorithms have become pivotal in daily activities, sports, and healthcare. Nevertheless, addressing the challenge of…

人机交互 · 计算机科学 2024-11-19 Nazanin Sedaghati , Masoud Kargar , Sina Abbaskhani

There is a significant performance gap between Binary Neural Networks (BNNs) and floating point Deep Neural Networks (DNNs). We propose to improve the binary training method, by introducing a new regularization function that encourages…

机器学习 · 计算机科学 2020-04-22 Sajad Darabi , Mouloud Belbahri , Matthieu Courbariaux , Vahid Partovi Nia

Designing a scheme that can achieve a good performance in predicting single person activities and group activities is a challenging task. In this paper, we propose a novel robust and efficient human activity recognition scheme called ReHAR,…

计算机视觉与模式识别 · 计算机科学 2018-02-28 Xin Li , Mooi Choo Chuah

Class-Incremental Learning (CIL) [40] trains classifiers under a strict memory budget: in each incremental phase, learning is done for new data, most of which is abandoned to free space for the next phase. The preserved data are exemplars…

计算机视觉与模式识别 · 计算机科学 2023-01-18 Yaoyao Liu , Bernt Schiele , Qianru Sun

Human action recognition plays a critical role in healthcare and medicine, supporting applications such as patient behavior monitoring, fall detection, surgical robot supervision, and procedural skill assessment. While traditional models…

计算机视觉与模式识别 · 计算机科学 2025-08-01 Utkarsh Shandilya , Marsha Mariya Kappan , Sanyam Jain , Vijeta Sharma

We propose a novel interactive learning framework which we refer to as Interactive Attention Learning (IAL), in which the human supervisors interactively manipulate the allocated attentions, to correct the model's behavior by updating the…

机器学习 · 计算机科学 2020-06-11 Jay Heo , Junhyeon Park , Hyewon Jeong , Kwang Joon Kim , Juho Lee , Eunho Yang , Sung Ju Hwang

Multi-task learning has been observed by many researchers, which supposes that different tasks can share a low-rank common yet latent subspace. It means learning multiple tasks jointly is better than learning them independently. In this…

机器学习 · 计算机科学 2021-12-10 Wei Chang , Feiping Nie , Rong Wang , Xuelong Li

The last decade has seen a revolution in the theory and application of machine learning and pattern recognition. Through these advancements, variable ranking has emerged as an active and growing research area and it is now beginning to be…

计算机视觉与模式识别 · 计算机科学 2017-06-20 Giorgio Roffo

Human Activity Recognition (HAR) is considered a valuable research topic in the last few decades. Different types of machine learning models are used for this purpose, and this is a part of analyzing human behavior through machines. It is…

机器学习 · 计算机科学 2021-03-31 Jakaria Rabbi , Md. Tahmid Hasan Fuad , Md. Abdul Awal