Abstract: An improved time-variant asymmetric integral barrier function with adjustable parameters is constructed for the first time in this study. The presented barrier function, which is constructed ...

Abstract: Objective. Photoplethysmography (PPG) technology is the basis of most wearable cardiovascular health monitoring devices. PPG-based monitoring typically uses heart rate (HR) analysis.

Quadratic regression is a classical machine learning technique to predict a single numeric value. Quadratic regression is an extension of basic linear regression. Quadratic regression can deal with ...