Evolution Characteristics of Advanced Nonferrous Metal Industry Patent Cooperation Network in China from the Perspective of Multilayer Network

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td class="align_left">Project</td><td class="align_center">Network size</td><td class="align_center">Number of network edge</td><td class="align_center">Network diameter</td><td class="align_center">Graph density</td><td class="align_center">Average clustering coefficient</td><td class="align_center">Average path length</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">Index value</td><td class="align_center">3010</td><td class="align_center">4124</td><td class="align_center">16</td><td class="align_center">0.001</td><td class="align_center">0.729</td><td class="align_center">5.083</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Basic attribute index of an invention patent cooperation network of the advanced nonferrous metals industry in China from 2002 to 2020.</div>

Mathematical Problems in Engineering

tab1

Table 1

Table 1: Evolution Characteristics of Advanced Nonferrous Metal Industry Patent Cooperation Network in China from the Perspective of Multilayer Network 

Table 1 | Evolution Characteristics of Advanced Nonferrous Metal Industry Patent Cooperation Network in China from the Perspective of Multilayer Network 