An Improved Nonlinear Grey Bernoulli Model Based on the Whale Optimization Algorithm and Its Application

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Year</td><td class="align_center">Number</td><td class="align_center">Year</td><td class="align_center">Number</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">2011</td><td class="align_center">8630</td><td class="align_center">2015</td><td class="align_center">11732</td></tr><tr><td class="align_left">2012</td><td class="align_center">9225</td><td class="align_center">2016</td><td class="align_center">13062</td></tr><tr><td class="align_left">2013</td><td class="align_center">9842</td><td class="align_center">2017</td><td class="align_center">14971</td></tr><tr><td class="align_left">2014</td><td class="align_center">10632</td><td class="align_center">2018</td><td class="align_center">16280</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The number of R&amp;D institutions of higher education from 2011 to 2018.</div>

Mathematical Problems in Engineering

tab6

Table 6

Table 6: An Improved Nonlinear Grey Bernoulli Model Based on the Whale Optimization Algorithm and Its Application 