## Nomenclature \begin{tabular}{l l}
**Acronym** & **Description** \\ AI & Artificial intelligence \\ ANN & Artificial Neural Network \\ ASHRAE & American Society of Heating, Refrigerating and Air-Conditioning Engineers \\ ARIMA & Autoregressive integrated moving average \\ CAPEX & Capital expenditure \\ CNN & Convolutional Neural Network \\ COP & Coefficient of Performance \\ CWP & Chilled water plant \\ CVRMSE & Coefficient of the variation in the RMSE \\ DL & Deep learning \\ DRL & Deep reinforcement learning \\ DBN & Deep belief network \\ \(\varepsilon\) DE-RJ & Epsilon-constrained differential evolution with random jumping \\ GPR & Gaussian Process Regression \\ HVAC & Heating, ventilation, and air conditioning \\ IC & Initial Cost \\ ICS & Individual cooling system \\ KPI & Key performance indicator \\ LCC & Life cycle cost \\ LSTM & Long Short-Term Memory \\ ML & Machine learning \\ MC & Maintenance cost \\ MAPE & Mean absolute percentage error \\ MSE & Mean square error \\ MPC & Model predictive control \\ OPEX & Operational expenditure \\ O\&M & Operation and maintenance \\ PRISMA & Preferred reporting items for systematic reviews and meta-analyses \\ PLR & Part load ratio \\ PID & Proportional-integral-derivative \\ PAR & Peak-to-average ratio \\ PSO & Particle Swarm Optimization \\ PPO & Proximal Policy Optimization \\ PBML & Physics-Based Machine Learning \\ RB & Rule-based \\ RBC & Rule-based control \\ RMSE & Root mean squared error \\ SVM & Support Vector Machine \\ TCO & Total cost of ownership \\ TL & Transfer learning \\ \end{tabular}   
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