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

<table class="table-group" id="tab30"><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 OECD overall </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">0.277910816466/(1+E(−(−2.58069789463+0.040512555172*t))) </td></tr><tr><td align="left">Bass</td><td align="left">0.277911999052*(1−E(−(1.4531815579e−07+0.0405120087548)*(t−(−245.790644296))))<br/>/(1+(0.0405120087548/1.4531815579e−07)*E(−(1.4531815579e−07+0.0405120087548)*  <br/>(t−(−245.790644296))))</td></tr><tr><td align="left">Gompertz with constant</td><td align="left">0.291419722502*E(−4.90258116522*E(−0.0259253838506*t))+0.0253819182253</td></tr><tr><td align="left">Gompertz</td><td align="left">0.395094721399*E(−3.35529164695*E(−0.0182708343745*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 (OECD overall).

Advances in Operations Research

tab30

Table 30

Table 30: A Hybrid Genetic Programming Method in Optimization and Forecasting: A Case Study of the Broadband Penetration in OECD Countries 