Fractal complexity of daily physical activity and cognitive function in a midlife cohort

JM Blodgett, M Ahmadi, E Stamatakis, K Rockwood… - Scientific Reports, 2023 - nature.com
High stability of fluctuation in physiological patterns across fixed time periods suggest
healthy fractal complexity, while greater randomness in fluctuation patterns may indicate …

Complexity and memory-based comparison of the brain activity between ADHD and healthy subjects while playing a serious game

NM Dawi, K Kuca, O Krejcar, H Namazi - Fractals, 2021 - World Scientific
Attention deficit hyperactivity disorder (ADHD) is a mental health disorder that is very
common among children and may last into their adulthood. It is known that ADHD affects the …

Complex network-based pertussis and croup cough analysis: A machine learning approach

A Renjini, MS Swapna, V Raj, KS Kumar… - Physica D: Nonlinear …, 2022 - Elsevier
The paper proposes a novel approach to bring out the potential of complex networks based
on graph theory to unwrap the hidden characteristics of cough signals, croup (BC), and …

Fractal dimension based geographical clustering of COVID-19 time series data

YA Natalia, C Faes, T Neyens, P Chys, N Hammami… - Scientific Reports, 2023 - nature.com
Understanding the local dynamics of COVID-19 transmission calls for an approach that
characterizes the incidence curve in a small geographical unit. Given that incidence curves …

Classification of pulmonary crackle and normal lung sound using spectrogram and support vector machine

A Rizal, W Priharti, D Rahmawati… - Journal of Biomimetics …, 2022 - Trans Tech Publ
Crackles is one of the types of adventitious lung sound heard in patients with interstitial
pulmonary fibrosis or cystic fibrosis. Pulmonary crackles of discontinuous short duration …

Metaheuristic secured transmission in Telecare Medical Information System (TMIS) in the face of post-COVID-19

J Dey, A Sarkar, S Karforma, B Chowdhury - Journal of Ambient …, 2023 - Springer
The outbreak of novel corona virus had led the entire world to make severe changes. A
secured healthcare data transmission has been proposed through Telecare Medical …

Untangling the graph based features for lung sound auscultation

S Sankararaman - Biomedical Signal Processing and Control, 2022 - Elsevier
Auscultation is a historically significant and currently relevant method employed in medical
diagnosis. The technological advancement joining hands with mathematical principles led to …

Time series and mel frequency analyses of wet and dry cough signals: A neural net classification

A Renjini, MNS Swapna, KNS Kumar… - Physica A: Statistical …, 2023 - Elsevier
The present study proposes a method for detecting and classifying wet (WC) and dry (DC)
cough signals using spectral, cepstral, fractal, and nonlinear time-series analyses. Spectral …

Unwrapping the phase portrait features of adventitious crackle for auscultation and classification: a machine learning approach

S Sreejyothi, A Renjini, V Raj, MNS Swapna… - Journal of Biological …, 2021 - Springer
The paper delves into the plausibility of applying fractal, spectral, and nonlinear time series
analyses for lung auscultation. The thirty-five sound signals of bronchial (BB) and pulmonary …

Bioacoustic signal analysis through complex network features

V Raj, MS Swapna, S Sankararaman - Computers in Biology and Medicine, 2022 - Elsevier
The paper proposes a graph-theoretical approach to auscultation, bringing out the potential
of graph features in classifying the bioacoustics signals. The complex network analysis of …