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Data augmentation methods are commonly integrated into the training of anomaly detection models. Previous approaches have primarily focused on replicating real-world anomalies or enhancing diversity, without considering that the standard of…

人工智能 · 计算机科学 2024-12-30 Jiang Lin , Yaping Yan

Deep learning advancements have revolutionized scalable classification in many domains including computer vision. However, when it comes to wearable-based classification and domain adaptation, existing computer vision-based deep learning…

计算机视觉与模式识别 · 计算机科学 2023-07-04 Yidong Zhu , Md Mahmudur Rahman , Mohammad Arif Ul Alam

Micro-expressions (MEs) are brief, involuntary facial movements that reveal genuine emotions, typically lasting less than half a second. Recognizing these subtle expressions is critical for applications in psychology, security, and…

计算机视觉与模式识别 · 计算机科学 2025-10-20 Vu Tram Anh Khuong , Luu Tu Nguyen , Thanh Ha Le , Thi Duyen Ngo

The popularity and diffusion of wearable devices provides new opportunities for sensor-based human activity recognition that leverages deep learning-based algorithms. Although impressive advances have been made, two major challenges remain.…

信号处理 · 电气工程与系统科学 2024-02-16 Mengna Liu , Dong Xiang , Xu Cheng , Xiufeng Liu , Dalin Zhang , Shengyong Chen , Christian S. Jensen

Together with the rapid development of the Internet of Things (IoT), human activity recognition (HAR) using wearable Inertial Measurement Units (IMUs) becomes a promising technology for many research areas. Recently, deep learning-based…

计算机视觉与模式识别 · 计算机科学 2020-10-12 Ling Pei , Songpengcheng Xia , Lei Chu , Fanyi Xiao , Qi Wu , Wenxian Yu , Robert Qiu

Data augmentation is a promising technique for unsupervised anomaly detection in industrial applications, where the availability of positive samples is often limited due to factors such as commercial competition and sample collection…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Lingrui Zhang , Shuheng Zhang , Guoyang Xie , Jiaqi Liu , Hua Yan , Jinbao Wang , Feng Zheng , Yaochu Jin

Transformer-based human skeleton action recognition has been developed for years. However, the complexity and high parameter count demands of these models hinder their practical applications, especially in resource-constrained environments.…

计算机视觉与模式识别 · 计算机科学 2024-12-31 Wenhan Wu , Pengfei Wang , Chen Chen , Aidong Lu

Data augmentation (DA) is widely employed to improve the generalization performance of deep models. However, most existing DA methods employ augmentation operations with fixed or random magnitudes throughout the training process. While this…

计算机视觉与模式识别 · 计算机科学 2025-07-15 Suorong Yang , Peijia Li , Xin Xiong , Furao Shen , Jian Zhao

Random data augmentation is a critical technique to avoid overfitting in training deep neural network models. However, data augmentation and network training are usually treated as two isolated processes, limiting the effectiveness of…

计算机视觉与模式识别 · 计算机科学 2018-05-25 Xi Peng , Zhiqiang Tang , Fei Yang , Rogerio Feris , Dimitris Metaxas

Voice Activity Detection (VAD) refers to the problem of distinguishing speech segments from background noise. Numerous approaches have been proposed for this purpose. Some are based on features derived from the power spectral density,…

声音 · 计算机科学 2019-03-08 Thomas Drugman , Yannis Stylianou , Yusuke Kida , Masami Akamine

Generalizing the application of machine learning models to situations where the statistical distribution of training and test data are different has been a complex problem. Our contributions in this paper are threefold: (1) we introduce an…

机器学习 · 计算机科学 2022-03-03 Hasan Asyari Arief , Peter James Thomas , Tomasz Wiktorski

We report a mixed-signal data acquisition (DAQ) system for optically detected magnetic resonance (ODMR) of solid-state spins. This system is designed and implemented based on a Field-Programmable-Gate-Array (FPGA) chip assisted with…

量子物理 · 物理学 2022-01-19 Feifei Zhou , Shupei Song , Yuxuan Deng , Ting Zhang , Bing Chen , Nanyang Xu

A fundamental problem in robotic perception is matching identical objects or data, with applications such as loop closure detection, place recognition, object tracking, and map fusion. While the problem becomes considerably more challenging…

机器人学 · 计算机科学 2021-12-01 Parker C. Lusk , Ronak Roy , Kaveh Fathian , Jonathan P. How

Data augmentation is a key element for training accurate models by reducing overfitting and improving generalization. For image classification, the most popular data augmentation techniques range from simple photometric and geometrical…

机器学习 · 计算机科学 2022-11-02 Avery Ma , Nikita Dvornik , Ran Zhang , Leila Pishdad , Konstantinos G. Derpanis , Afsaneh Fazly

This paper proposes a data-adaptive factor model (DAFM), a novel framework for extracting common factors that explain the structures of high-dimensional data. DAFM adopts a composite quantile strategy to adaptively capture the full…

统计方法学 · 统计学 2025-10-02 Seeun Park , Hee-Seok Oh

Human Activity Recognition (HAR) has gained great attention from researchers due to the popularity of mobile devices and the need to observe users' daily activity data for better human-computer interaction. In this work, we collect a human…

人工智能 · 计算机科学 2024-09-26 Ning Sun , Yufei Wang , Yuwei Zhang , Jixiang Wan , Shenyue Wang , Ping Liu , Xudong Zhang

This paper proposes a simple yet effective interpolation-based data augmentation approach termed DoubleMix, to improve the robustness of models in text classification. DoubleMix first leverages a couple of simple augmentation operations to…

计算与语言 · 计算机科学 2022-09-13 Hui Chen , Wei Han , Diyi Yang , Soujanya Poria

This paper presents a new method to solve a dynamic sensor fusion problem. We consider a large number of remote sensors which measure a common Gauss-Markov process and encoders that transmit the measurements to a data fusion center through…

最优化与控制 · 数学 2022-10-19 Hyunho Jung , Ali Reza Pedram , Travis Craig Cuvelier , Takashi Tanaka

We propose an augmented Parallel-Pyramid Net ($P^2~Net$) with feature refinement by dilated bottleneck and attention module. During data preprocessing, we proposed a differentiable auto data augmentation ($DA^2$) method. We formulate the…

计算机视觉与模式识别 · 计算机科学 2020-10-28 Luanxuan Hou , Jie Cao , Yuan Zhao , Haifeng Shen , Jian Tang , Ran He

As the uplink sensing has the advantage of easy implementation, it attracts great attention in integrated sensing and communication (ISAC) system. This paper presents an uplink ISAC system based on multi-input multi-output orthogonal…

信息论 · 计算机科学 2023-10-11 Jinghui Piao , Zhiqing Wei , Xin Yuan , Xiaoyu Yang , Huici Wu , Zhiyong Feng