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Following the introduction of Dynamic Mode Decomposition and its numerous extensions, many neural autoencoder-based implementations of the Koopman operator have recently been proposed. This class of methods appears to be of interest for…

机器学习 · 计算机科学 2025-06-06 Anthony Frion , Lucas Drumetz , Mauro Dalla Mura , Guillaume Tochon , Abdeldjalil Aïssa-El-Bey

COVID-19 has caused many deaths worldwide. The automation of the diagnosis of this virus is highly desired. Convolutional neural networks (CNNs) have shown outstanding classification performance on image datasets. To date, it appears that…

In the integrative analyses of omics data, it is often of interest to extract data representation from one data type that best reflect its relations with another data type. This task is traditionally fulfilled by linear methods such as…

应用统计 · 统计学 2021-03-30 Tianwei Yu

Knee osteoarthritis (OA) is very common progressive and degenerative musculoskeletal disease worldwide creates a heavy burden on patients with reduced quality of life and also on society due to financial impact. Therefore, any attempt to…

图像与视频处理 · 电气工程与系统科学 2020-05-26 Neslihan Bayramoglu , Miika T. Nieminen , Simo Saarakkala

Zero-shot skeleton-based action recognition aims to develop models capable of identifying actions beyond the categories encountered during training. Previous approaches have primarily focused on aligning visual and semantic representations…

计算机视觉与模式识别 · 计算机科学 2025-06-30 Wenhan Wu , Zhishuai Guo , Chen Chen , Hongfei Xue , Aidong Lu

Purpose: The aim of this study was to demonstrate the utility of unsupervised domain adaptation (UDA) in automated knee osteoarthritis (OA) phenotype classification using a small dataset (n=50). Materials and Methods: For this retrospective…

图像与视频处理 · 电气工程与系统科学 2023-10-31 Junru Zhong , Yongcheng Yao , Donal G. Cahill , Fan Xiao , Siyue Li , Jack Lee , Kevin Ki-Wai Ho , Michael Tim-Yun Ong , James F. Griffith , Weitian Chen

Domain shift is a problem commonly encountered when developing automated histopathology pipelines. The performance of machine learning models such as convolutional neural networks within automated histopathology pipelines is often…

图像与视频处理 · 电气工程与系统科学 2021-07-16 Andrew Moyes , Richard Gault , Kun Zhang , Ji Ming , Danny Crookes , Jing Wang

In recent years the NHS has been having increased difficulty seeing all low-risk patients, this includes but not limited to suspected osteoarthritis (OA) patients. To help address the increased waiting lists and shortages of staff, we…

计算机视觉与模式识别 · 计算机科学 2023-04-27 Kai Armstrong , Lei Zhang , Yan Wen , Alexander P. Willmott , Paul Lee , Xujioing Ye

Multi-person motion capture can be challenging due to ambiguities caused by severe occlusion, fast body movement, and complex interactions. Existing frameworks build on 2D pose estimations and triangulate to 3D coordinates via reasoning the…

计算机视觉与模式识别 · 计算机科学 2022-07-18 Junkun Jiang , Jie Chen , Yike Guo

This paper proposes a new approach to automatically quantify the severity of knee osteoarthritis (OA) from radiographs using deep convolutional neural networks (CNN). Clinically, knee OA severity is assessed using Kellgren \& Lawrence (KL)…

计算机视觉与模式识别 · 计算机科学 2016-09-09 Joseph Antony , Kevin McGuinness , Noel E O Connor , Kieran Moran

In this paper, we present an in-depth investigation of the convolutional autoencoder (CAE) bottleneck. Autoencoders (AE), and especially their convolutional variants, play a vital role in the current deep learning toolbox. Researchers and…

机器学习 · 计算机科学 2020-05-14 Ilja Manakov , Markus Rohm , Volker Tresp

This paper proposes an autoencoder (AE) that is used for improving the performance of once-class classifiers for the purpose of detecting anomalies. Traditional one-class classifiers (OCCs) perform poorly under certain conditions such as…

机器学习 · 计算机科学 2020-01-01 Kasra Babaei , ZhiYuan Chen , Tomas Maul

Object-centric representations form the basis of human perception, and enable us to reason about the world and to systematically generalize to new settings. Currently, most works on unsupervised object discovery focus on slot-based…

机器学习 · 计算机科学 2022-11-21 Sindy Löwe , Phillip Lippe , Maja Rudolph , Max Welling

The performance of Quantum Autoencoders (QAEs) in anomaly detection tasks is critically dependent on the choice of data embedding and ansatz design. This study explores the effects of three data embedding techniques, data re-uploading,…

量子物理 · 物理学 2024-09-10 Jack Y. Araz , Michael Spannowsky

Absence of sufficiently high-quality data often poses a key challenge in data-driven modeling of high-dimensional spatio-temporal dynamical systems. Koopman Autoencoders (KAEs) harness the expressivity of deep neural networks (DNNs), the…

机器学习 · 计算机科学 2025-07-04 Indranil Nayak , Ananda Chakrabarty , Mrinal Kumar , Fernando Teixeira , Debdipta Goswami

When applying the foreground removal methods to uncover the faint cosmological signal from the epoch of reionization (EoR), the foreground spectra are assumed to be smooth. However, this assumption can be seriously violated in practice…

天体物理仪器与方法 · 物理学 2019-03-15 Weitian Li , Haiguang Xu , Zhixian Ma , Ruimin Zhu , Dan Hu , Zhenghao Zhu , Junhua Gu , Chenxi Shan , Jie Zhu , Xiang-Ping Wu

The aim of this paper is to design a deep learning-based model to predict proximal femoral strength using multi-view information fusion. Method: We developed new models using multi-view variational autoencoder (MVAE) for feature…

In medical applications, deep learning methods are built to automate diagnostic tasks. However, a clinically relevant question that practitioners usually face, is how to predict the future trajectory of a disease (prognosis). Current…

机器学习 · 计算机科学 2021-12-08 Huy Hoang Nguyen , Simo Saarakkala , Matthew B. Blaschko , Aleksei Tiulpin

Multimodal Variational Autoencoders have emerged as a popular tool to extract effective representations from rich multimodal data. However, such models rely on fusion strategies in latent space that destroy the joint statistical structure…

机器学习 · 计算机科学 2026-03-03 Federico Caretti , Guido Sanguinetti

Knee osteoarthritis (OA) is one of the most widespread and burdensome health problems [1-4]. Total knee replacement (TKR) may be offered as treatment for end-stage knee OA. Nevertheless, TKR is an invasive procedure involving prosthesis…

图像与视频处理 · 电气工程与系统科学 2025-11-20 Zhisen Hu , Dominic Cullen , David S. Johnson , Aleksei Tiulpin , Timothy F. Cootes , Claudia Lindner