IPS	Indoor Positioning System
DNN	Deep Neural Networks
GNSS	Global Navigation Satellite System
RFID	Radio Frequency Identification
UWB	Ultra-wideband
WAP	Wireless Access Points
RF	Radio Frequency
MEMS	Micro-Electromechanical System
MP	Magnetic Patterns
DTW	Dynamic Time Warping
LSTM	Long-Short-Term-Memory
CNN	Convolutional Neural Network
RNN	Recurrent Neural Network