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

<table class="table-group" id="tab24"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td align="center" colspan="2">Fitting performance—optimized diffusion models for Sweden </td></tr><tr class="thead"><td align="left">Model name</td><td align="left">Model</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td align="left">Logistic</td><td align="left">0.336282902699/(1+E(−(−2.56246214+0.0518475273171*t))) </td></tr><tr><td align="left">Bass</td><td align="left">0.336282965867*(1−E(−(2.4303762338e−08+0.0518474673078)*(t−(−231.654837703))))<br/>/(1+(0.0518474673078/2.4303762338e−08)*E(−(2.4303762338e−08+0.0518474673078)* <br/>(t−(−231.654837703))))</td></tr><tr><td align="left">Gompertz with constant</td><td align="left">0.288901526679*E(−8.20983958007*E(−0.0446528448837*t))+0.0500790650845</td></tr><tr><td align="left">Gompertz</td><td align="left">0.366385197367*E(−3.31412845356*E(−0.0301554112794*t))</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Representation of the optimized diffusion models in fitting (Sweden).

Advances in Operations Research

tab24

Table 24

Table 24: A Hybrid Genetic Programming Method in Optimization and Forecasting: A Case Study of the Broadband Penetration in OECD Countries 