CNC machine tools 2 thermal error 2 Ambient temperature interval 1 CNC machine tool 1 Clustering algorithms 1 Computer control systems 1 Computer modelling & simulation 1 Engineering thermodynamics 1 Error compensation 1 Error prediction model 1 Forecasting 1 Machine tools 1 Model method 1 Model robustness 1 Prediction accuracy 1 Production engineering 1 Temperature 1 Temperature intervals 1 Thermal error 1 Thermal error compensation 1 Thermal error modeling 1 ambient temperature interval 1 model robustness 1 neural network 1 particle swarm optimization 1 radial basis function 1