GPS	Global positioning system
RFID	Radio frequency identification device
UWB	Ultra wide band
APs	Access points
RSSI	Received signal strength indicator
ML	Machine learning
RA-HDL	Robot-aided hybrid deep learning approach
KNN	K-nearest neighbor
SVM	Support vector machine
MLP	Multi-layer perceptron
DL	Deep learning
CSI	Channel state information
TL	Transfer learning
AE	Autoencoder
SAE	Stacked autoencoder
VAE	Variational autoencoder
DF-VAE	Densely fused variational autoencoder
DED-LM	Deep encode–decode localization model
DED-AM	Deep encode–decode action model
MDP	Markov decision process
MSE	Mean square error
KL	Kullback–Leibler
RA-CD	Robot-aided collected dataset
USL	Unsupervised learning
SSL	Semi-supervised learning
dBm	Decibel-milliwatts