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Higher Order Spectral (HOS) analysis is often applied effectively to analyze many bio-medical signals to detect nonlinear and non-Gaussian processes. One of the most basic HOS methods is the bispectral estimation, which extracts the degree…

Medical Physics · Physics 2018-09-25 Yamini Kotriwar , Sneha Kachhara , K. P. Harikrishnan , G. Ambika

Electroencephalogram, an influential equipment for analyzing humans activities and recognition of seizure attacks can play a crucial role in designing accurate systems which can distinguish ictal seizures from regular brain alertness, since…

Signal Processing · Electrical Eng. & Systems 2018-06-26 Amirmasoud Ahmadi , Mahsa Behroozi , Vahid Shalchyan , Mohammad Reza Daliri

Monitoring the activity of the heart is important for diagnosing and preventing cardiovascular diseases. The electrocardiogram (ECG) is the gold standard for diagnosing such diseases. It monitors the heart's electrical activity, and while…

Signal Processing · Electrical Eng. & Systems 2023-09-19 Rémi Grisot , Pierre Laurent , Claire Migliaccio , Jean-Yves Dauvignac , Mélanie Brulc , Camille Chiquet , Jean-Paul Caruana

Traditional authentication systems use alphanumeric or graphical passwords, or token-based techniques that require "something you know and something you have". The disadvantages of these systems include the risks of forgetfulness, loss, and…

Cryptography and Security · Computer Science 2019-09-25 Ebrahim Al Alkeem , Song-Kyoo Kim , Chan Yeob Yeun , M. Jamal Zemerly , Kin Poon , Paul D. Yoo

Background: Extensive clinical evidence suggests that a preventive screening of coronary heart disease (CHD) at an earlier stage can greatly reduce the mortality rate. We use 64 two-dimensional speckle tracking echocardiography (2D-STE)…

Machine Learning · Statistics 2021-05-21 Jingyi Zhang , Huolan Zhu , Yongkai Chen , Chenguang Yang , Huimin Cheng , Yi Li , Wenxuan Zhong , Fang Wang

Electroencephalography (EEG) signals are resultants of extremely complex brain activity. Some details of this hidden dynamics might be accessible through e.g. joint distributions $\rho_{\Delta t}$ of signals of pairs of electrodes shifted…

Signal Processing · Electrical Eng. & Systems 2023-05-30 Jarek Duda

Analyzing electrocardiography (ECG) data is essential for diagnosing and monitoring various heart diseases. The clinical adoption of automated methods requires accurate confidence measurements, which are largely absent from existing…

Databases of electronic health records (EHRs) are increasingly used to inform clinical decisions. Machine learning methods can find patterns in EHRs that are predictive of future adverse outcomes. However, statistical models may be built…

Machine Learning · Statistics 2018-12-04 Andrew C. Miller , Ziad Obermeyer , Sendhil Mullainathan

This paper describe the features extraction algorithm for electrocardiogram (ECG) signal using Huang Hilbert Transform and Wavelet Transform. ECG signal for an individual human being is different due to unique heart structure. The purpose…

Computer Vision and Pattern Recognition · Computer Science 2019-08-15 Neha Soorma , Jaikaran Singh , Mukesh Tiwari

Using the Markovian method, we study the stochastic nature of electrical discharge current fluctuations in the Helium plasma. Sinusoidal trends are extracted from the data set by the Fourier-Detrended Fluctuation analysis and consequently…

Statistical Mechanics · Physics 2011-04-21 S. Kimiagar , M. Sadegh Movahed , S. Khorram , M. Reza Rahimi Tabar

In this paper we introduce a covariance framework for the analysis of EEG and MEG data that takes into account observed temporal stationarity on small time scales and trial-to-trial variations. We formulate a model for the covariance…

Applications · Statistics 2014-10-10 Beata Roś , Fetsje Bijma , Mathisca de Gunst , Jan de Munck

Seismocardiography (SCG) offers a potential non-invasive method for cardiac monitoring. Quantification of the effects of different physiological conditions on SCG can lead to enhanced understanding of SCG genesis, and may explain how some…

Signal Processing · Electrical Eng. & Systems 2018-03-06 Amirtaha Taebi , Hansen A Mansy

Electrocardiogram (ECG) is one of the most convenient and non-invasive tools for monitoring peoples' heart condition, which can use for diagnosing a wide range of heart diseases, including Cardiac Arrhythmia, Acute Coronary Syndrome, et al.…

Signal Processing · Electrical Eng. & Systems 2020-07-08 Shenda Hong , Zhaoji Fu , Rongbo Zhou , Jie Yu , Yongkui Li , Kai Wang , Guanlin Cheng

Electrocardiogram (ECG) abnormalities are linked to cardiovascular diseases, but may also occur in other non-cardiovascular conditions such as mental, neurological, metabolic and infectious conditions. However, most of the recent success of…

Signal Processing · Electrical Eng. & Systems 2022-10-13 Weijie Sun , Sunil Vasu Kalmady , Amir Salimi , Nariman Sepehrvand , Eric Ly , Abram Hindle , Russell Greiner , Padma Kaul

Electrocardiography (ECG) plays a significant role in diagnosing heart-related issues, it provides, accurate, fast, and dependable insights into crucial parameters like QRS complex duration, the R-R interval, and the occurrence, amplitude,…

Signal Processing · Electrical Eng. & Systems 2023-07-24 Kavya Remesh , Job Chunkath

This paper addresses the problem of estimating the modes of an observed non-stationary mixture signal in the presence of an arbitrary distributed noise. A novel Bayesian model is introduced to estimate the model parameters from the…

Signal Processing · Electrical Eng. & Systems 2022-03-31 Quentin Legros , Dominique Fourer , Sylvain Meignen , Marcelo A. Colominas

Electroencephalogram (EEG) is a very promising and widely implemented procedure to study brain signals and activities by amplifying and measuring the post-synaptical potential arising from electrical impulses produced by neurons and…

Neurons and Cognition · Quantitative Biology 2023-04-05 Subhrangshu Adhikary , Kushal Jain , Biswajit Saha , Deepraj Chowdhury

Echocardiography is the most commonly used imaging technique in clinical cardiology. Due to the high demand for this type of examination and the small number of specialists, there is a need to support the examination process through…

Discovering explicit governing equations of stochastic dynamical systems with both (Gaussian) Brownian noise and (non-Gaussian) L\'evy noise from data is chanllenging due to possible intricate functional forms and the inherent complexity of…

Machine Learning · Statistics 2024-10-01 Yang Li , Shengyuan Xu , Jinqiao Duan

Electroencephalogram (EEG) is the recording which is the result due to the activity of bio-electrical signals that is acquired from electrodes placed on the scalp. In Electroencephalogram signal(EEG) recordings, the signals obtained are…