Research Article
A Hybrid Genetic Programming Method in Optimization and Forecasting: A Case Study of the Broadband Penetration in OECD Countries
Table 33
Representation of the first five produced hGP models in forecasting (The Netherlands).
| Forecasting performance—hGP models for The Netherlands | Model name | Model |
| hGP Model 1 | 0.253326242314*E(−25.4808891372*E(−0.0589928095313*t))*(E(+23.1207979455*E (−0.0648090808052*t))+0.521707030392) | hGP Model 2 | 0.383595542499*(1−E(−(1.73831772618e−08+0.0617339056621)*(t−(−195.681455628)))) /(1+(0.0617339056621/1.73831772618e−08)*E(−(1.73831772618e−08+0.0617339056621) *(t−(−195.681455628)))) | hGP Model 3 | 0.38359548724/(1+E(−(((−3.00265784135++0.0617339638782*t))))) | hGP Model 4 | 0.383619520777/(1+E(−(+30.303671841−30.3139537846*E(−6.97443602173e−06*t))*( E(+5.67696636631)))) | hGP Model 5 | −6.99832857574e−05/(1−1.00018242854*E(((+0.00367050894083*E(−0.0617182268173*t)) −((0.00104546915744*t))*(E(−(−(−642.723570678−0.745098043066*t))))))) |
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