Detection and Classification of Abnormities of First Heart Sound Using Empirical Wavelet Transform - Li, Haixia; Ren, Yongfeng; Zhang, Guojun; Wang, Renxin; Cui, Jiangong; Zhang, Wendong (IEEE access, 2019)
Keywords: abnormities; Algorithms; Amplitudes; Artificial intelligence; Classification; Classification algorithms; Clusters; Decision trees; Decomposition; empirical wavelet transform (EWT); First heart sound (S1); Heart; Hilbert transformation; Instantaneous frequency (IF); Mathematical analysis; mitral component (M1); Resampling; Segmentation; Signal processing; Sound; Stethoscope; Time-frequency analysis; tricuspid component (T1); Valves; Wavelet transforms