Full Name: 2021 Workshop on Big Data Engineering Abbreviation: WBDE 2021 Welcome to join in the 2021 Workshop on Big Data Engineering (WBDE 2021), which will be held as a Virtual Conference during November 20-22, 2021. Papers submitted to WBDE 2021 will be peer reviewed by the conference committees, and accepted papers will be published in Lecture Notes on Data Engineering and Communications Technologies by Springer, which will be indexed by Scopus, EI Compendex, Inspec and submitted for consideration in Web of Science. Selected papers after being extended will be recommended to International Journal of Machine Learning and Computing for publication, which will be indexed by Inspec, Google Scholar, Crossref, ProQuest, Electronic Journals Library, etc. The conference will be held in virtual mode. There are two methods for submitting your paper: 1.By our electric system: http://confsys.iconf.org/conference/wbde2021 2.By our contact email box: wbde@academic.net Please feel free contact with us: Conference Secretary: Scenario Jiang E-mail: wbde@academic.net Telephone: +86-28-86512185 (GMT+8: Mon-Fri 9:30-17:30) For more information about international conferences, please visit our conference website: WBDE 2021 website: http://www.wbde.org