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

<table class="table-group" id="tab32"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td align="center" colspan="2">Forecasting 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">0.375347548406/(1+E(−(−2.50124733322+0.0454566554106*t)))</td></tr><tr><td align="left">Bass</td><td align="left">0.375348107159*(1−E(−(4.05055161391e−08+0.0454564711241)*(t−(−251.439978251))))<br/>/(1+(0.0454564711241/4.05055161391e−08)*E(−(4.05055161391e−08+0.0454564711241)<br/>*(t−(−251.439978251)))) </td></tr><tr><td align="left">Gompertz with constant</td><td align="left">0.370148682751*E(−5.03987923004*E(−0.0313473706267*t))+0.0375384813167</td></tr><tr><td align="left">Gompertz</td><td align="left">0.493581707395*E(−3.13558666165*E(−0.0214071552547*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 forecasting (Sweden).

Advances in Operations Research

tab32

Table 32

Table 32: A Hybrid Genetic Programming Method in Optimization and Forecasting: A Case Study of the Broadband Penetration in OECD Countries 