Welcome to join in the 2021 4th Asia Conference on Machine Learning and Computing (ACMLC 2021)，which will be held in Bangkok, Thailand, December 1-3, 2021. For papers submitted to ACMLC 2021, we offer the publications as following: 1. Publication in Conference Proceedings. Submissions will be reviewed by the conference technical committees, and accepted papers will be published in International Conference Proceedings, which will be indexed by Scopus, EI, Google Scholar, and other major databases. 2. Selected papers will be published in International Journal of Machine Learning and Computing as a special issue, which will be indexed by EI (INSPEC, IET), Google Scholar, Crossref, etc. There are two methods for submitting your paper: 1.By our electric system: https://cmt3.research.microsoft.com/ACMLC2021 2.By our contact email box: acmlc@iacsitp.com Please feel free contact with us: Cherry Chan (Conference Secretary) E-mail: acmlc@iacsitp.com Tel: +86-28-86512185 For more information about international conferences, please visit our conference website: ACMLC 2021 website: http://www.acmlc.org/