fig9
![A prediction approach of fiber laser surface treatment using ensemble of metamodels considering energy consumption and processing quality](https://image.oaes.cc/7adc3bdd-c829-4cf9-a346-c3dd83cdc4fd/5145.fig.9.jpg)
Figure 9. Experimental values and predictive values from EMs under the LOO method. TEC: The total energy consumption; R, surface roughness; DWR: depth-width ratio; EM: ensemble of metamodels; LOO: leave-one-out; EV: experimental values; PV: predictive values.