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Due to the lack of automated methods, to diagnose cerebrovascular disease, time-of-flight magnetic resonance angiography (TOF-MRA) is assessed visually, making it time-consuming. The commonly used encoder-decoder architectures for…

图像与视频处理 · 电气工程与系统科学 2024-06-21 Syed Farhan Abbas , Nguyen Thanh Duc , Yoonguu Song , Kyungwon Kim , Ekta Srivastava , Boreom Lee

In visual recognition tasks, such as image classification, unsupervised learning exploits cheap unlabeled data and can help to solve these tasks more efficiently. We show that the recursive autoconvolution operator, adopted from physics,…

计算机视觉与模式识别 · 计算机科学 2017-03-28 Boris Knyazev , Erhardt Barth , Thomas Martinetz

Unsupervised learning methods for feature extraction are becoming more and more popular. We combine the popular contrastive learning method (prototypical contrastive learning) and the classic representation learning method (autoencoder) to…

计算机视觉与模式识别 · 计算机科学 2022-05-11 Zeyu Cao , Xiaorun Li , Liaoying Zhao

This paper introduces an unsupervised framework to extract semantically rich features for video representation. Inspired by how the human visual system groups objects based on motion cues, we propose a deep convolutional neural network that…

计算机视觉与模式识别 · 计算机科学 2017-07-18 Xunyu Lin , Victor Campos , Xavier Giro-i-Nieto , Jordi Torres , Cristian Canton Ferrer

We present a coupled Variational Auto-Encoder (VAE) method that improves the accuracy and robustness of the probabilistic inferences on represented data. The new method models the dependency between input feature vectors (images) and weighs…

机器学习 · 计算机科学 2025-11-25 Shichen Cao , Jingjing Li , Kenric P. Nelson , Mark A. Kon

The ever-growing popularity of Kinect and inertial sensors has prompted intensive research efforts on human action recognition. Since human actions can be characterized by multiple feature representations extracted from Kinect and inertial…

计算机视觉与模式识别 · 计算机科学 2016-09-06 Yanan Guo , Lei Li , Weifeng Liu , Jun Cheng , Dapeng Tao

Elder people consequence a variety of problems while living Activities of Daily Living (ADL) for the reason of age, sense, loneliness and cognitive changes. These cause the risk to ADL which leads to several falls. Getting real life fall…

计算机视觉与模式识别 · 计算机科学 2020-10-27 Asma Khatun , Sk. Golam Sarowar Hossain

In this paper we develop a new unsupervised machine learning technique comprised of a feature extractor, a convolutional autoencoder (CAE), and a clustering algorithm consisting of a Bayesian Gaussian mixture model (BGM). We apply this…

天体物理仪器与方法 · 物理学 2020-04-15 Ting-Yun Cheng , Nan Li , Christopher J. Conselice , Alfonso Aragón-Salamanca , Simon Dye , Robert B. Metcalf

Multimodal features play a key role in wearable sensor based Human Activity Recognition (HAR). Selecting the most salient features adaptively is a promising way to maximize the effectiveness of multimodal sensor data. In this regard, we…

人机交互 · 计算机科学 2017-11-22 Kaixuan Chen , Lina Yao , Tao Gu , Zhiwen Yu , Xianzhi Wang , Dalin Zhang

In recent years, Discriminative Correlation Filter (DCF) based methods have significantly advanced the state-of-the-art in tracking. However, in the pursuit of ever increasing tracking performance, their characteristic speed and real-time…

计算机视觉与模式识别 · 计算机科学 2017-04-12 Martin Danelljan , Goutam Bhat , Fahad Shahbaz Khan , Michael Felsberg

High-impedance faults (HIF) are difficult to detect because of their low current amplitude and highly diverse characteristics. In recent years, machine learning (ML) has been gaining popularity in HIF detection because ML techniques learn…

机器学习 · 计算机科学 2021-06-28 Khushwant Rai , Farnam Hojatpanah , Firouz Badrkhani Ajaei , Katarina Grolinger

Learning features from massive unlabelled data is a vast prevalent topic for high-level tasks in many machine learning applications. The recent great improvements on benchmark data sets achieved by increasingly complex unsupervised learning…

神经与进化计算 · 计算机科学 2015-09-29 Wentao Zhu , Jun Miao , Laiyun Qing , Xilin Chen

Unsupervised learning is becoming more and more important recently. As one of its key components, the autoencoder (AE) aims to learn a latent feature representation of data which is more robust and discriminative. However, most AE based…

机器学习 · 计算机科学 2019-04-02 Jingcai Guo , Song Guo

Convolutional Neural Networks (CNNs) have recently been shown to excel at performing visual place recognition under changing appearance and viewpoint. Previously, place recognition has been improved by intelligently selecting relevant…

机器人学 · 计算机科学 2018-10-31 Stephen Hausler , Adam Jacobson , Michael Milford

We introduce a simple but effective technique in automatic hand gesture recognition using radar. The proposed technique classifies hand gestures based on the envelopes of their micro-Doppler signatures. These envelopes capture the…

信号处理 · 电气工程与系统科学 2019-02-11 Moeness G. Amin , Zhengxin Zeng , Tao Shan

Breast cancer is the second most common cancer among women worldwide. Diagnosis of breast cancer by the pathologists is a time-consuming procedure and subjective. Computer aided diagnosis frameworks are utilized to relieve pathologist…

计算机视觉与模式识别 · 计算机科学 2023-08-15 Bahareh Morovati , Reza Lashgari , Mojtaba Hajihasani , Hasti Shabani

Our ability to exploit low-cost wearable sensing modalities for critical human behaviour and activity monitoring applications in health and wellness is reliant on supervised learning regimes; here, deep learning paradigms have proven…

信号处理 · 电气工程与系统科学 2020-08-20 Alireza Abedin , Farbod Motlagh , Qinfeng Shi , Seyed Hamid Rezatofighi , Damith Chinthana Ranasinghe

We introduce a method for automated temporal segmentation of human motion data into distinct actions and compositing motion primitives based on self-similar structures in the motion sequence. We use neighbourhood graphs for the partitioning…

计算机视觉与模式识别 · 计算机科学 2021-12-07 Björn Krüger , Anna Vögele , Tobias Willig , Angela Yao , Reinhard Klein , Andreas Weber

Continuous treatment effect estimation holds significant practical importance across various decision-making and assessment domains, such as healthcare and the military. However, current methods for estimating dose-response curves hinge on…

机器学习 · 计算机科学 2024-06-05 Ruijing Cui , Jianbin Sun , Bingyu He , Kewei Yang , Bingfeng Ge

In the recent times, autoencoders, besides being used for compression, have been proven quite useful even for regenerating similar images or help in image denoising. They have also been explored for anomaly detection in a few cases.…

计算机视觉与模式识别 · 计算机科学 2018-04-03 Shruti Mittal , Dattaraj Rao