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Objective: Obstructive sleep apnea (OSA) is a serious chronic disease and a risk factor for cardiovascular diseases. Snoring is a typical symptom of OSA patients. Knowledge of the origin of obstruction and vibration within the upper airways is essential for a targeted surgical approach. Aim of this paper is to systematically compare different acoustic features, and classifiers for their performance...
This paper first discusses the D-pole placement problem of fractional-order linear systems. Some criteria are proposed to ensure that all the closed-loop eigenvalues of fractional-order linear systems are located inside a specific region S(a, r, θ). Then, necessary and sufficient D-stability condition of fractional-order linear systems guaranteeing the D-stability is presented. Conditions for feasibility...
This paper investigates the coupling of three nonlinear fractional differential equations, which analyzes the dynamic characteristics of the system and uses the modified DTM method to solve the nonlinear fractional differential equation of it. We use the method of ‘0–1 test’ to verify chaotic of the system, compute Lyapunov exponents to verify the regimes of chaotic dynamics, and design a nonlinear...
Bird sounds have been studied in recent years due to their significance in helping ornithologists, and ecologists to monitor birds activities, which reflect climate changes, biodiversity, and reserves local protection status. Within the increasingly collected large amount of bird sound data from experts and amateurs, how to handle, and employ the state-of-the-art deep learning methods to mining such...
Snore sound (SnS) data has been demonstrated to carry very important information for diagnosis and evaluation of sleep related breathing disorders with high prevalence, such as Primary Snoring and Obstructive Sleep Apnea (OSA) — a serious chronic sleep disorder with a big community. With the increasing number of collected SnS data from subjects, how to handle such large amount of data is a big challenge,...
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