Investigation of ANN Model Containing One Hidden Layer for Predicting Compressive Strength of Concrete with Blast-Furnace Slag and Fly Ash

Table 2

Summary of different values of neurons in the hidden layer proposed in the literature.

Number	Authors	Formulas	Values computed	Values taken	Reference
1	Neville (1986)		6	6	[53]
2	Neville (1986)		17	17	[53]
3	Hush (1989)		24	24	[54]
4	Popovics (1990)		4.5	4, 5	[55]
5	Gallant (1993)		16	16	[56]
6	Wang (1994)		5.33	5, 6	[57]
7	Masters (1994)		3	3	[58]
8	Li et al. (1995)		3.53	3, 4	[59]
9	Tamura and Tateishi (1997)		9	9	[60]
10	Lai and Serra (1997)		8	8	[61]
11	Nagendra (1998)		9	9	[62]
12	Zhang et al. (2003)		33	33	[63]
13	Shibata and Yusuke (2009)		2.83	2, 3	[64]
14	Sheela and Deepa (2013)		4.63	4, 5	[40]
15	Hunter et al. (2012)		255	255	[65]
16	Ripley (1993)		4.5	4, 5	[66]
17	Kannellopoulas and Wilkinson (1997)		16	16	[67]
18	Paola (1994)		1.28	1, 2	[68]