## Abbreviations  
* A1 Artificial intelligence
* AEC Architecture, engineering, and construction
* ANFIS Adaptive neuro-fuzzy interference system
* ANN Artificial neural network
* AR Advance rate
* BFGS Broyden-Fletcher-Goldfarb-Shanno algorithm
* CAD Computer-aided design
* DT Digital twin
* FS Feature space
* GMDH Group modeling of data handling
* ICA Imperialist competitive algorithm
* IoT Internet of things
* ML Machine learning
* MLP Multilayer perceptron
* NJHEP Neelum Jhelum hydroelectric project
* NASA National aeronautics and space administration
* O&M Operation and maintenance
* PR Penetration rate
* PSO Particle swarm optimization
* ReLU Rectified linear unit
* RMR Rock mass rating  
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