Welcome to join in the 2021 5th International Conference on Intelligent Systems, Metaheuristics & Swarm Intelligence (ISMSI 2021), which will be held in Victoria, Seychelles during April 10-11, 2021. For papers submitted to ISMSI 2021, we offer the publication as following: Accepted Papers after registration and presentation at ISMSI 2021 will be published in ACM International Conference Proceedings(The ISBN number is 978-1-4503-8967-9), which will be indexed by Ei Compendex, Scopus, and submitted to be reviewed by Thomson Reuters (ISI Web of Science). European Journal of Operational Research, an Elsevier Publication [SCIE indexed, 2019 lmpact Factor : 4.213, 5 Year Impact Factor : 4.729 ], will consider for publication a few selected expanded papers of lSMSl20 in its usual reviewing process. A special issue of "Neural Computing & Applications", a Springer Publication [SCIE indexed, 2019 lmpact Factor : 4.774, 5 Year Impact Factor: 4.627; ISSN: 0941-0643 (print version) ISSN: 1433-3058 (electronic version)], will publish a selected set of extended versions of ISMSI21 papers (to be shortlisted after the conference), after the usual reviewing of those papers. There is one method for submitting your paper: By our electric system: https://www.easychair.org/conferences/?conf=ismsi2021 Please feel free contact with us: Nancy Liu (Conference Secretary) E-mail: sub@ismsi.org Tel: +86-13709044746 For more information about international conferences, please visit our conference website: ISMSI 2021 website: http://www.ismsi.org