Research Article

A Hybrid Genetic Programming Method in Optimization and Forecasting: A Case Study of the Broadband Penetration in OECD Countries

Table 34

Representation of the optimized diffusion models in forecasting (The Netherlands).

Forecasting performance—optimized diffusion models for The Netherlands
Model nameModel

Logistic0.37898025831/(1+E(−(−3.01882999246+0.062714536225*t)))
Bass0.378980333001*(1−E(−(2.34739032545e−08+0.0627144548701)*(t−(−187.825594969))))
/(1+(0.0627144548701/2.34739032545e−08)*E(−(2.34739032545e−08+0.0627144548701)
*(t−(−187.825594969))))
Gompertz with constant0.368021712377*E(−6.9150399399*E(−0.0442055310107*t))+0.0308188707983
Gompertz0.433015517173*E(−4.14875467224*E(−0.0340271367285*t))