AANN	Auto-associative neural networks
ADC	Analog-to-digital converters
AE	Acoustic emission
AIS	Artificial immune systems
ANN	Analysis of artificial neural networks
BF-SHM	Baseline-free SHM
BHM	Bridge Health Monitoring
BU	Bayesian updating
DAQ	Data acquisition
DSS	Decision support systems
DWT	Discrete wavelet transform
EMI	Electromechanical impedance
EMIS	Electromechanical impedance spectroscopy
EUT	Expected utility theory
FA	Factor analysis
FBG	Fiber Bragg grating
FDD	Frequency domain decomposition
FEA	Finite element analysis
FOS	Fiber optics sensors
GUW	Guided ultrasonic wave
HC	Hierarchical clustering
h-NLPLCA	Hierarchical nonlinear principal component analysis
ICA	Independent component analysis
IoT	Internet of Things
kNN	k-nearest neighbor
LDV	Laser Doppler vibrometer
LVDT	Linear variable differential transducer
MAR	Measured amplitude ratio
MEMS	Microelectromechanical systems
ML	Machine learning
NBI	National Bridge Inventory
NDE	Nondestructive evaluation
NEMS	Nanoelectromechanical system
NLPCA	Nonlinear principal component analysis
OMA	Operational modal analysis
PCA	Principal component analysis
PDI	Probability damage imaging
PT	Prospect theory
PVDF	Polyvinylidene difluoride
P(VDF-TrFE)	Poly(vinylidene-co-trifluoroethylene)
PZT	Piezoelectric transducer
RF	Radio frequency
RMSD	Root-mean-square deviation
ROC	Receiver operating characteristic
SFEM	Smoothed finite element method
SHM	Structural health monitoring
SOM	Self-organizing maps
SVD	Singular value decomposition
UWC	Unsupervised waveform clustering