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In this study, a machine learning model was developed for automatically detecting respiratory system sounds such as sneezing and coughing in disease diagnosis. The automatic model and approach development of breath sounds, which carry…

Sound · Computer Science 2021-11-30 Negin Melek

Auscultation, particularly heart sound, is a non-invasive technique that provides essential vital sign information. Recently, self-supervised acoustic representation foundation models (FMs) have been proposed to offer insights into…

We consider the use of a running measure of power spectrum disorder to distinguish between the normal sinus rhythm of the heart and two forms of cardiac arrhythmia: atrial fibrillation and atrial flutter. This spectral entropy measure is…

Quantitative Methods · Quantitative Biology 2009-02-16 Phillip P. A. Staniczenko , Chiu Fan Lee , Nick S. Jones

Wearable devices enable theoretically continuous, longitudinal monitoring of physiological measurements like step count, energy expenditure, and heart rate. Although the classification of abnormal cardiac rhythms such as atrial fibrillation…

Signal Processing · Electrical Eng. & Systems 2020-01-28 Jessica Torres Soto , Euan Ashley

In this paper it is presented a detailed numerical investigation of acoustic emission signals obtained from test samples of fibreglass reinforced polymeric matrix composites, when subjected to tensile and flexural tests. Various fractal…

Materials Science · Physics 2015-06-24 F. E. Silva , L. L. Goncalves , D. B. B. Fereira , J. M. A. Rebello

We describe the multiresolution wavelet analysis of blood pressure waves in vasovagal syncope affected patients compared with healthy people. We argue that there exist discriminating criteria which allow us to isolate particular features,…

Biological Physics · Physics 2009-10-31 A. Marrone , A. D. Polosa , G. Scioscia , S. Stramaglia , A. Zenzola

The severity of atrial fibrillation (AF) can be assessed from intra-operative epicardial measurements (high-resolution electrograms), using metrics such as conduction block (CB) and continuous conduction delay and block (cCDCB). These…

Phonetic error detection, a core subtask of automatic pronunciation assessment, identifies pronunciation deviations at the phoneme level. Speech variability from accents and dysfluencies challenges accurate phoneme recognition, with current…

Auscultatory analysis using an electronic stethoscope has attracted increasing attention in the clinical diagnosis of respiratory diseases. Recently, neural networks have been applied to assist in respiratory sound classification with…

Sound · Computer Science 2025-04-25 Jiadong Xie , Yunlian Zhou , Mingsheng Xu

Heart rate variability (HRV) is a vital measure of the autonomic nervous system functionality and a key indicator of cardiovascular condition. This paper proposes a novel method, called pattern tree which is an extension of Willem's context…

Machine Learning · Computer Science 2017-10-23 Elyas Sabeti , Anders Høst-Madsen

Arrhythmia, an abnormal cardiac rhythm, is one of the most common types of cardiac disease. Automatic detection and classification of arrhythmia can be significant in reducing deaths due to cardiac diseases. This work proposes a multi-class…

Deep learning provides an excellent avenue for optimizing diagnosis and patient monitoring for clinical-based applications, which can critically enhance the response time to the onset of various conditions. For cardiovascular disease, one…

Machine Learning · Computer Science 2023-02-23 Ankur Samanta , Mark Karlov , Meghna Ravikumar , Christian McIntosh Clarke , Jayakumar Rajadas , Kaveh Hassani

Cardiovascular diseases are one of the most common causes of death in the world. Prevention, knowledge of previous cases in the family, and early detection is the best strategy to reduce this fact. Different machine learning approaches to…

Machine Learning · Computer Science 2019-10-07 Jefferson L. P. Lima , David Macêdo , Cleber Zanchettin

Accurately interpreting cardiac auscultation signals plays a crucial role in diagnosing and managing cardiovascular diseases. However, the paucity of labelled data inhibits classification models' training. Researchers have turned to…

Sound · Computer Science 2025-06-18 Leigh Abbott , Milan Marocchi , Matthew Fynn , Yue Rong , Sven Nordholm

Human heart rate fluctuates in a complex and non-stationary manner. Elaborating efficient and adequate tools for the analysis of such signals has been a great challenge for the researchers during last decades. Here, an overview of the main…

Medical Physics · Physics 2007-05-23 J. Kalda , M. Sakki , M. Vainu , M. Laan

Cardiovascular system diseases can be identified by using a specialized diagnostic process utilizing a digital stethoscope. Digital stethoscopes provide phonocardiography (PCG) recordings for further inspection, besides filtering and…

Signal Processing · Electrical Eng. & Systems 2024-02-21 Ibrahim Ozkan , Atila Yilmaz

Heartbeat classification using electrocardiogram (ECG) data is a vital assistive technology for wearable health solutions. We propose heartbeat feature classification based on a novel sparse representation using time-frequency joint…

Signal Processing · Electrical Eng. & Systems 2019-08-20 Anup Das , Francky Catthoor , Siebren Schaafsma

To develop a machine sound monitoring system, a method for detecting anomalous sound is proposed. In this paper, we explore a method for multiple clients to collaboratively learn an anomalous sound detection model while keeping their raw…

Audio and Speech Processing · Electrical Eng. & Systems 2024-03-26 Kota Dohi , Yohei Kawaguchi

Automatic detection of voice pathology enables objective assessment and earlier intervention for the diagnosis. This study provides a systematic analysis of glottal source features and investigates their effectiveness in voice pathology…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-18 Sudarsana Reddy Kadiri , Paavo Alku

Pulse wave measurements provide vital information in medical diagnosis. For this reason, a measurement system is developed for determining the transient time of the pulse wave between the heart and the ear. To detect pressure variations in…

Medical Physics · Physics 2020-08-06 Roman Kusche , Paula Klimach , Ankit Malhotra , Steffen Kaufmann , Martin Ryschka
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