Proccedings: All submissions will be peer reviewed, and all the accepted papers will be published in the *WSCE 2021 conference Proceedings*, which will be reviewed by *IEEE publication program *and be submitted for inclusion into IEEE Xplore, *EI Compendex and Scopus*. Conference Chairs:Konstantinos E. Psannis,University of Macedonia, GreeceYutaka Ishibashi,Nagoya Institute of Technology, Japan Program Chair:Sotirios Goudos,Aristotle University of Thessaloniki, GreecePanagiotis Sarigiannidis,University of Western MacedonIa, Greece Contact:Conference Secretary: Ms. Serene LoE-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.: +86 13709044764