HAR	Human activity recognition
TNN	Triplet neural network
OOD	Out-of-distribution
SNN	Siamese neural network
FCN	Fully-convolutional neural network
ReLU	Rectified linear unit
PEF	Personalized engineered feature
PDF	Personalized deep feature network
PTN	Personalized triplet network
k-NN	k-Nearest Neighbors
IMU	Inertial measurement unit
ADL	Activities of daily living
AUROC	Area under the receiver operator characteristic curve