Access control Computing time 1 Deep neural networks 1 Guided electromagnetic wave propagation 1 Human Machine Interface 1 Localisation 1 Machine earning 1 Machine-learning 1 Mean square error 1 Signal processing 1 Signal-processing 1 Simple++ 1 Surface waves 1 Touch technologies 1 Ultrasonic guided wave 1 Ultrasonic lamb waves 1 Ultrasonic waves 1 human–machine interface 1 machine earning 1 signal processing 1 touch technology 1 ultrasonic wave 1