Results 41 to 50 of about 885,099 (311)

Differences between normal and arrhythmic electrocardiograms using frequency analysis [PDF]

open access: yesRevista Ciencias de la Salud, 2004
We report an advance of a research project basedon the hypothesis that electrocardiograms (ECG)are easier to interpret in the frequency domain than in the time domain. This paper is aimed tomedical personnel.
Raúl Narváez-Sánchez   +1 more
doaj  

Analysis on the risk of myasthenia gravis related to immune checkpoint inhibitors based on the US FDA Adverse Event Reporting System

open access: yesCancer Medicine, 2023
Objective To evaluate the risk of myasthenia gravis (MG) associated with immune checkpoint inhibitors (ICI). Methods Adverse event (AE) reports related to MG, myasthenic syndrome, and MG crisis for durvalumab, atezolizumab, pembrolizumab, nivolumab ...
Qingli Kong   +4 more
doaj   +1 more source

An Improved PixelHop Framework and its Application in Rolling Bearing Fault Diagnosis

open access: yesIEEE Access, 2021
The PixelHop framework based on successive subspace learning (SSL) has been widely used in signal processing and computer vision, which can effectively improve the classification accuracy in high spatial resolution scenes through successive subspace ...
Lanjun Wan   +5 more
doaj   +1 more source

To further understand graph signals [PDF]

open access: yesarXiv, 2022
Graph signal processing (GSP) is a framework to analyze and process graph-structured data. Many research works focus on developing tools such as Graph Fourier transforms (GFT), filters, and neural network models to handle graph signals. Such approaches have successfully taken care of ``signal processing'' in many circumstances.
arxiv  

Radar and RGB-depth sensors for fall detection: a review [PDF]

open access: yes, 2017
This paper reviews recent works in the literature on the use of systems based on radar and RGB-Depth (RGB-D) sensors for fall detection, and discusses outstanding research challenges and trends related to this research field.
Cippitelli, Enea   +3 more
core   +1 more source

Heart Sound Signal Analysis for Digital Auscultation

open access: yesJournal of Physics: Conference Series, 2022
Cardiac auscultation is the examination of the heart by listening to the sound produced by the heart through a stethoscope. Heart sounds can provide information about the functioning of the heart valve condition as well as information about the ...
P. Busono   +3 more
semanticscholar   +1 more source

A new local structural similarity fusion-based thresholding method for homomorphic ultrasound image despeckling in NSCT domain

open access: yesJournal of King Saud University: Computer and Information Sciences, 2023
Ultrasound is a diagnostic imaging technique to detect various illnesses related to the body's internal organs. It is a non-invasive, safe, cost-effective, and simple imaging modality that uses high-frequency sound waves and their reflection from ...
Prabhishek Singh   +4 more
doaj  

Topological Signal Processing over Simplicial Complexes [PDF]

open access: yes, 2019
The goal of this paper is to establish the fundamental tools to analyze signals defined over a topological space, i.e. a set of points along with a set of neighborhood relations. This setup does not require the definition of a metric and then it is especially useful to deal with signals defined over non-metric spaces.
arxiv   +1 more source

Wireless Communications in the Era of Big Data

open access: yes, 2015
The rapidly growing wave of wireless data service is pushing against the boundary of our communication network's processing power. The pervasive and exponentially increasing data traffic present imminent challenges to all the aspects of the wireless ...
Bi, Suzhi   +3 more
core   +1 more source

Why rankings of biomedical image analysis competitions should be interpreted with care

open access: yesNature Communications, 2018
Biomedical image analysis challenges have increased in the last ten years, but common practices have not been established yet. Here the authors analyze 150 recent challenges and demonstrate that outcome varies based on the metrics used and that limited ...
Lena Maier-Hein   +37 more
doaj   +1 more source

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