Table 10 Results from the utilization of raw and minimum–maximum preprocessing for 7-day compressive strength by using DAVO algorithm.

7-day compressive strength	Neuron number	4	8	12	16
MSE test	Raw	57.40	69.71	64.08	54.76
MSE test	Min–Max	57.39	69.71	64.08	53.67
MSE train	Raw	83.59	89.33	86.45	83.26
MSE train	Min–Max	83.58	89.33	86.45	82.87
R test	Raw	0.86	0.82	0.82	0.86
R test	Min–Max	0.86	0.82	0.82	0.85
R train	Raw	0.63	0.60	0.61	0.63
R train	Min–Max	0.63	0.60	0.61	0.64

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