Memory Property of Grey Accumulation Generation Sequence

<table class="fixed-width table-group" id="tab2"><tr><td><table class="table"><colgroup><col style="width:10.87em"/><col style="width:4.11em"/><col style="width:4.51em"/><col style="width:4.23em"/></colgroup><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Beijing</td><td class="align_center">Handan </td><td class="align_center">Xingtai</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Original sequence</td><td class="align_center">0.007</td><td class="align_center">0.04</td><td class="align_center">0.07</td></tr><tr><td class="align_left">Accumulation sequence</td><td class="align_center">0.99</td><td class="align_center">0.99</td><td class="align_center">0.98</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The AQI Hurst exponent value of three cities.</div>

Complexity

tab2

Table 2

Table 2: Memory Property of Grey Accumulation Generation Sequence 