3D segmentation Chebyshev filters EPON GPON Least Absolute Shrinkage and Selection Operator (LASSO) MATLAB NG-PON2 Parkinson's disease Parkinson's disease dysgraphia Richardson iteration Taylor series XG-PON acoustic analysis activation process authentication brain cognitive radio deep learning dynamic time warping electrocardiogram (ECG) follow-up study fractional calculus fractional-order derivative fractional-order filters hypokinetic dysarthria identification interference alignment interference leakage kinematic analysis low-pass filters