Research Article
A Hybrid Genetic Programming Method in Optimization and Forecasting: A Case Study of the Broadband Penetration in OECD Countries
Table 28
Representation of the optimized diffusion models in fitting (Denmark).
| Fitting performance—optimized diffusion models for Denmark | Model name | Model |
| Logistic | 0.386701712691/(1+E(−(−2.76922996844+0.058481412812*t))) | Bass | 0.386701824675*(1−E(−(7.48033939618e−08+0.0584811962598)*(t−(−184.676718196)))) /(1+(0.0584811962598/7.48033939618e−08)*E(−(7.48033939618e−08+0.0584811962598) *(t−(−184.676718196)))) | Gompertz with constant | 0.364158594712*E(−6.08132991138*E(−0.042851861025*t))+0.0339245270247 | Gompertz | 0.411115617425*E(−3.86441490696*E(−0.0356437099203*t)) |
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