A Dynamical Innovation Diffusion Model with Fuzzy Coefficient and Its Application to Local Telephone Diffusion in China

Table 3

The error control target value of history data.

Error	Target value	𝑎1	𝑏1	𝑐1	𝑑1	𝑑1	𝑎2	𝑏2	𝑐2
40%	61768.5455	0.00096375	0.24507401	0.00469948	0.01684506	0.02466292	0.00001841	0.33879513	0.00426482
42%/45%	50022.8637	0.00095945	0.23580981	0.00458211	0.01059862	0.01564592	0.00010486	0.32689596	0.00722705
48%	53540.5485	0.00102646	0.26399854	0.00536816	0.00984631	0.01055605	0.00005475	0.34041871	0.00568559
50%	52452.7799	0.00110203	0.24089633	0.00428221	0.01080374	0.01947233	0.00015806	0.33330485	0.00639973
55%/60%	56275.6173	0.00138509	0.22832759	0.00437598	0.01320603	0.02571032	0.00010449	0.33776971	0.00441932
70%	67415.3809	0.00152391	0.2427015	0.00452018	0.01237617	0.01860317	0.00038169	0.30762658	0.01860317
80%	62990.3848	0.00182419	0.22243202	0.00546679	0.0168813	0.02976928	0.00026592	0.32409742	0.00742617
82%/100%	44348.1732	0.00098436	0.25674215	0.00472934	0.01607596	0.02030183	0.00065298	0.29850459	0.0078024
150%	68339.4199	0.00192974	0.22880764	0.00431324	0.01132408	0.01233833	0.00089076	0.28284555	0.00641127