Research Article
A Hybrid Genetic Programming Method in Optimization and Forecasting: A Case Study of the Broadband Penetration in OECD Countries
Table 24
Representation of the optimized diffusion models in fitting (Sweden).
| Fitting performance—optimized diffusion models for Sweden | Model name | Model |
| Logistic | 0.336282902699/(1+E(−(−2.56246214+0.0518475273171*t))) | Bass | 0.336282965867*(1−E(−(2.4303762338e−08+0.0518474673078)*(t−(−231.654837703)))) /(1+(0.0518474673078/2.4303762338e−08)*E(−(2.4303762338e−08+0.0518474673078)* (t−(−231.654837703)))) | Gompertz with constant | 0.288901526679*E(−8.20983958007*E(−0.0446528448837*t))+0.0500790650845 | Gompertz | 0.366385197367*E(−3.31412845356*E(−0.0301554112794*t)) |
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