The causal relationship k

<p><strong>Published at:&nbsp; </strong></p> <p>MATEC Web of Conferences: ISSN: 2261-236X.<br> ( https://www.matec-conferences.org/ )<br> <a href="https://doi.org/10.1051/matecconf/202133609032">https://doi.org/10.1051/matecconf/202133609032 </a></p> <p>MATEC Web Conf.</p> <p><strong>Volume </strong>336, 2021<br> Article Number: 09032</p> <p>Number of page(s): 28</p> <p>2020 2^nd International Conference on Computer Science Communication and Network Security (CSCNS2020)<br> <a href="https://doi.org/10.1051/matecconf/202133609032">https://doi.org/10.1051/matecconf/202133609032 </a></p> <p><strong>Published online: </strong>15 February 2021</p> <p>see also:</p> <p><strong>2020 2nd International Conference on Computer Science, Communication and Network Security (CSCNS2020</strong></p> <p>Sanya, China<br> <strong>December 22-23, 2020</strong><br> http://www.cscns.org/<br> Contact via email:<br> submit@cscns.org<br> or<br> cscns2020@sina.com</p> <p>http://www.cscns.org/keynote.html</p>