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The problem of human activity recognition from mobile sensor data applies to multiple domains, such as health monitoring, personal fitness, daily life logging, and senior care. A critical challenge for training human activity recognition…

计算机视觉与模式识别 · 计算机科学 2022-05-10 Abduallah Mohamed , Fernando Lejarza , Stephanie Cahail , Christian Claudel , Edison Thomaz

Hyperparameter selection is an essential aspect of the machine learning pipeline, profoundly impacting models' robustness, stability, and generalization capabilities. Given the complex hyperparameter spaces associated with Neural Networks…

机器学习 · 计算机科学 2024-10-18 Ruinan Wang , Ian Nabney , Mohammad Golbabaee

Alzheimer diseases (ADs) involves cognitive decline and abnormal brain protein accumulation, necessitating timely diagnosis for effective treatment. Therefore, CAD systems leveraging deep learning advancements have demonstrated success in…

图像与视频处理 · 电气工程与系统科学 2024-05-28 Saddam Hussain Khan

In deep-sea exploration and surgical robotics scenarios, environmental lighting and device resolution limitations often cause high-frequency feature attenuation. Addressing the differences in frequency band sensitivity between CNNs and the…

计算机视觉与模式识别 · 计算机科学 2025-09-10 Guohao Huo , Ruiting Dai , Jinliang Liu , Ling Shao , Hao Tang

Deep convolutional neural networks (DCNNs) have aided high dynamic range (HDR) imaging recently and have received a lot of attention. The quality of DCNN-generated HDR images has overperformed the traditional counterparts. However, DCNNs…

计算机视觉与模式识别 · 计算机科学 2022-09-26 Ziyi Liu , Jie Yang , Svetlana Yanushkevich , Orly Yadid-Pecht

Band selection in hyperspectral imaging (HSI) is critical for optimising data processing and enhancing analytical accuracy. Traditional approaches have predominantly concentrated on analysing spectral and pixel characteristics within…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Judy X Yang , Jun Zhou , Jing Wang , Hui Tian , Alan Wee Chung Liew

The main streams of human activity recognition (HAR) algorithms are developed based on RGB cameras which are suffered from illumination, fast motion, privacy-preserving, and large energy consumption. Meanwhile, the biologically inspired…

计算机视觉与模式识别 · 计算机科学 2022-11-18 Xiao Wang , Zongzhen Wu , Bo Jiang , Zhimin Bao , Lin Zhu , Guoqi Li , Yaowei Wang , Yonghong Tian

Automatic skin lesion segmentation methods based on fully convolutional networks (FCNs) are regarded as the state-of-the-art for accuracy. When there are, however, insufficient training data to cover all the variations in skin lesions,…

计算机视觉与模式识别 · 计算机科学 2024-12-17 Lei Bi , Michael Fulham , Jinman Kim

Human activity recognition (HAR) based on mobile sensors plays an important role in ubiquitous computing. However, the rise of data regulatory constraints precludes collecting private and labeled signal data from personal devices at scale.…

信号处理 · 电气工程与系统科学 2021-06-02 Chenglin Li , Di Niu , Bei Jiang , Xiao Zuo , Jianming Yang

Autoencoder (AEC) networks have recently emerged as a promising approach to perform unsupervised hyperspectral unmixing (HU) by associating the latent representations with the abundances, the decoder with the mixing model and the encoder…

信号处理 · 电气工程与系统科学 2022-02-16 Haoqing Li , Ricardo Augusto Borsoi , Tales Imbiriba , Pau Closas , José Carlos Moreira Bermudez , Deniz Erdoğmuş

In recent years, deep learning has led to significant advances in bearing fault diagnosis (FD). Most techniques aim to achieve greater accuracy. However, they are sensitive to noise and lack robustness, resulting in insufficient domain…

人工智能 · 计算机科学 2024-05-31 Huanbai Liu , Fanlong Zhang , Yin Tan , Lian Huang , Yan Li , Guoheng Huang , Shenghong Luo , An Zeng

Wearable sensor based human activity recognition is a challenging problem due to difficulty in modeling spatial and temporal dependencies of sensor signals. Recognition models in closed-set assumption are forced to yield members of known…

计算机视觉与模式识别 · 计算机科学 2024-04-24 M Tanjid Hasan Tonmoy , Saif Mahmud , A K M Mahbubur Rahman , M Ashraful Amin , Amin Ahsan Ali

We propose a CNN based technique that aggregates feature maps from its multiple layers that can localize abnormalities with greater details as well as predict pathology under consideration. Existing class activation mapping (CAM) techniques…

计算机视觉与模式识别 · 计算机科学 2019-10-01 Sumeet Shinde , Tanay Chougule , Jitender Saini , Madhura Ingalhalikar

Feature selection is essential for high-dimensional biomedical data, enabling stronger predictive performance, reduced computational cost, and improved interpretability in precision medicine applications. Existing approaches face notable…

机器学习 · 计算机科学 2026-01-07 Xiaoyan Sun , Qingyu Meng , Yalu Wen

Feature extraction techniques are crucial in medical image classification; however, classical feature extractors, in addition to traditional machine learning classifiers, often exhibit significant limitations in providing sufficient…

计算机视觉与模式识别 · 计算机科学 2025-10-01 Oscar Ramos-Soto , Jorge Ramos-Frutos , Ezequiel Perez-Zarate , Diego Oliva , Sandra E. Balderas-Mata

With the growing application of transformer in computer vision, hybrid architecture that combine convolutional neural networks (CNNs) and transformers demonstrates competitive ability in medical image segmentation. However, direct fusion of…

计算机视觉与模式识别 · 计算机科学 2024-12-02 Xiwei Liu , Min Xu , Qirong Ho

We have developed convolutional neural networks (CNN) for a facial expression recognition task. The goal is to classify each facial image into one of the seven facial emotion categories considered in this study. We trained CNN models with…

计算机视觉与模式识别 · 计算机科学 2017-04-25 Shima Alizadeh , Azar Fazel

Secure inference of deep convolutional neural networks (CNNs) under RNS-CKKS involves polynomial approximation of unsupported non-linear activation functions. However, existing approaches have three main limitations: 1) Inflexibility: The…

机器学习 · 计算机科学 2023-10-13 Wei Ao , Vishnu Naresh Boddeti

Sensor-based human activity recognition is a key technology for many human-centered intelligent applications. However, this research is still in its infancy and faces many unresolved challenges. To address these, we propose a comprehensive…

信号处理 · 电气工程与系统科学 2025-04-08 Hanyu Liu , Ying Yu , Hang Xiao , Siyao Li , Xuze Li , Jiarui Li , Haotian Tang

This paper proposes a non-interactive end-to-end solution for secure fusion and matching of biometric templates using fully homomorphic encryption (FHE). Given a pair of encrypted feature vectors, we perform the following ciphertext…

计算机视觉与模式识别 · 计算机科学 2022-08-16 Luke Sperling , Nalini Ratha , Arun Ross , Vishnu Naresh Boddeti