Full name: ACM--2021 The 4th International Conference on Computational Intelligence and Intelligent Systems (CIIS 2021)--Ei Compendex, Scopus Abbreviation: CIIS 2021 CIIS 2021 aims at addressing advances in research on computational intelligence and intelligent systems, covering topics ranging from enabling technologies to emerging applications and industrial experiences. CIIS aims to encourage researchers and practitioners to exchange and share their experiences. We look forward to welcoming you in International Conference Center, Waseda University, Tokyo, Japan during November 20-22, 2021. Publication: Conference proceedings will include the accepted and registered full papers by ACM CONFERENCE PROCEEDINGS, which is Ei Compendex, Scopus, Thomson Reuters. Conference Proceedings Citation Index (ISI Web of Science), etc. CIIS conference proceedings for last 3 years have been successfully indexed by Ei Compendex and Scopus three months after conference. Submission ways: The online submission system is opened here: http://confsys.iconf.org/submission/ciis2021 Call for Papers: ●Artificial life/Being ●Automated Planning ●Bayesian Networks ●Chaotic Systems For more topics, please visit: http://ciis.net/call.html Contact: Conference Secretary: Amber.XJ.Lin Tel: +1-562-606-1057 (English) +861-820-7777775 (English/Chinese) E-mail: ciis_info@sciei.org Web:http://ciis.net/