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Early diagnosis, playing an important role in preventing progress and treating the Alzheimer\{'}s disease (AD), is based on classification of features extracted from brain images. The features have to accurately capture main AD-related…

机器学习 · 计算机科学 2016-11-15 Ehsan Hosseini-Asl , Robert Keynto , Ayman El-Baz

Multidimensional scaling of gene sequence data has long played a vital role in analysing gene sequence data to identify clusters and patterns. However the computation complexities and memory requirements of state-of-the-art dimensional…

人工智能 · 计算机科学 2021-04-20 Pulasthi Wickramasinghe , Geoffrey Fox

Purpose. Brain Magnetic Resonance Images (MRIs) are essential for the diagnosis of neurological diseases. Recently, deep learning methods for unsupervised anomaly detection (UAD) have been proposed for the analysis of brain MRI. These…

图像与视频处理 · 电气工程与系统科学 2021-09-15 Marcel Bengs , Finn Behrendt , Julia Krüger , Roland Opfer , Alexander Schlaefer

Variational auto-encoders (VAEs) provide an attractive solution to image generation problem. However, they tend to produce blurred and over-smoothed images due to their dependence on pixel-wise reconstruction loss. This paper introduces a…

计算机视觉与模式识别 · 计算机科学 2018-04-30 Salman H. Khan , Munawar Hayat , Nick Barnes

Data augmentation is a widely used technique and an essential ingredient in the recent advance in self-supervised representation learning. By preserving the similarity between augmented data, the resulting data representation can improve…

机器学习 · 统计学 2025-01-16 Shulei Wang

Data augmentation (DA) is an essential technique for training state-of-the-art deep learning systems. In this paper, we empirically show data augmentation might introduce noisy augmented examples and consequently hurt the performance on…

计算机视觉与模式识别 · 计算机科学 2020-11-25 Chengyue Gong , Dilin Wang , Meng Li , Vikas Chandra , Qiang Liu

Deep learning has become a popular tool for medical image analysis, but the limited availability of training data remains a major challenge, particularly in the medical field where data acquisition can be costly and subject to privacy…

图像与视频处理 · 电气工程与系统科学 2024-06-11 Aghiles Kebaili , Jérôme Lapuyade-Lahorgue , Su Ruan

This study presents an innovative method for Alzheimer's disease diagnosis using 3D MRI designed to enhance the explainability of model decisions. Our approach adopts a soft attention mechanism, enabling 2D CNNs to extract volumetric…

图像与视频处理 · 电气工程与系统科学 2024-10-02 Gabriele Lozupone , Alessandro Bria , Francesco Fontanella , Frederick J. A. Meijer , Claudio De Stefano

The availability of training data is one of the main limitations in deep learning applications for medical imaging. Data augmentation is a popular approach to overcome this problem. A new approach is a Machine Learning based augmentation,…

图像与视频处理 · 电气工程与系统科学 2024-06-17 Oleksandr Fedoruk , Konrad Klimaszewski , Aleksander Ogonowski , Michał Kruk

AutoAugment has sparked an interest in automated augmentation methods for deep learning models. These methods estimate image transformation policies for train data that improve generalization to test data. While recent papers evolved in the…

计算机视觉与模式识别 · 计算机科学 2021-03-15 Denis Gudovskiy , Luca Rigazio , Shun Ishizaka , Kazuki Kozuka , Sotaro Tsukizawa

Anomaly detection in medical imaging is essential for identifying rare pathological conditions, particularly when annotated abnormal samples are limited. We propose a hybrid anomaly detection framework that integrates self-supervised…

计算机视觉与模式识别 · 计算机科学 2026-04-22 Pritam Kar , Gouri Lakshmi S , Saptarshi Bej

Convolutional Neural Networks (CNNs) have achieved high accuracy for cardiac structure segmentation if training cases and testing cases are from the same distribution. However, the performance would be degraded if the testing cases are from…

图像与视频处理 · 电气工程与系统科学 2020-12-29 Jun Ma

High-dimensional, low sample-size (HDLSS) data problems have been a topic of immense importance for the last couple of decades. There is a vast literature that proposed a wide variety of approaches to deal with this situation, among which…

统计方法学 · 统计学 2021-07-09 Kaixu Yang , Tapabrata Maiti

Recent advances in Convolutional Neural Network (CNN) model interpretability have led to impressive progress in visualizing and understanding model predictions. In particular, gradient-based visual attention methods have driven much recent…

计算机视觉与模式识别 · 计算机科学 2020-04-15 Wenqian Liu , Runze Li , Meng Zheng , Srikrishna Karanam , Ziyan Wu , Bir Bhanu , Richard J. Radke , Octavia Camps

This paper presents a new solution for reconstructing missing data in power system measurements. An Enhanced Denoising Autoencoder (EDAE) is proposed to reconstruct the missing data through the input vector space reconstruction based on the…

信号处理 · 电气工程与系统科学 2019-07-30 You Lin , Jianhui Wang , Mingjian Cui

The manifold assumption for high-dimensional data assumes that the data is generated by varying a set of parameters obtained from a low-dimensional latent space. Deep generative models (DGMs) are widely used to learn data representations in…

机器学习 · 计算机科学 2022-07-19 Krithika Iyer , Riddhish Bhalodia , Shireen Elhabian

This work proposes the use of 3D convolutional variational autoencoders (CVAEs) to trace the changes and symptomatology produced by neurodegeneration in Parkinson's disease (PD). In this work, we present a novel approach to detect and…

图像与视频处理 · 电气工程与系统科学 2023-05-15 E. Delgado de las Heras , F. J. Martinez-Murcia , I. A. Illán , C. Jiménez-Mesa , D. Castillo-Barnes , J. Ramírez , J. M. Górriz

Observational astronomy has undergone a significant transformation driven by large-scale surveys, such as the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) Survey, the Sloan Digital Sky Survey (SDSS), and the Gaia…

天体物理仪器与方法 · 物理学 2025-08-14 Bradley D. Hutchinson , Catherine A. Pilachowski , Christian I. Johnson

This paper presents a comprehensive study focused on disentangling hippocampal shape variations from diffusion tensor imaging (DTI) datasets within the context of neurological disorders. Leveraging a Mesh Variational Autoencoder (VAE)…

计算机视觉与模式识别 · 计算机科学 2024-11-12 Jakaria Rabbi , Johannes Kiechle , Christian Beaulieu , Nilanjan Ray , Dana Cobzas

We propose a simple yet novel data augmentation method for general data modalities based on energy-based modeling and principles from information geometry. Unlike most existing learning-based data augmentation methods, which rely on…

机器学习 · 计算机科学 2026-01-28 Pingbang Hu , Mahito Sugiyama