Machine learning Mean square error 19 machine learning 12 Forecasting 8 Decision trees 7 Machine-learning 7 Learning algorithms 6 Root mean square errors 5 Gradient boosting 4 Mean absolute error 4 Neural networks 4 Regression analysis 4 algorithm 4 artificial neural network 4 human 4 Convolution 3 Errors 3 Extreme gradient boosting 3 Humans 3 Neural-networks 3 prediction 3 6G-IoT 2 6g-IoT 2 Accelerometers 2 Acetone 2 Adaptive boosting 2 Benchmarking 2 Bending strength 2 China 2 Compressive strength 2