About ICAMIT2019 2019 4th International Conference on Applied Mathematics and Information Technology (ICAMIT2019) (http://www.icamit.org/2019/en/home) is a platform for academic communications between specialists and scholars in the fields of applied mathematics and information technology. ICAMIT2019 will be held in Hangzhou, China during Dec. 16-18, 2019. Hangzhou is the capital of Zhejiang Province and one of the seven ancient capitals of China. Publication 2019 4th International Conference on Applied Mathematics and Information Technology (ICAMIT2019) accepts original and unpublished papers. Both Full paper and Abstract are welcomed. Full papers accepted by the conference will be published online in the following journals of Science Publishing Group (http://www.sciencepublishinggroup.com). The journals have been indexed and abstracted by WorldCat, CrossRef, Electronic Journals Library, CNKI, Zeitschriftendatenbank, EZB, ResearchBib, Polish Scholarly Bibliography, Wissenschaftszentrum Berlin, etc. Science Journal of Applied Mathematics and Statistics (SJAMS) http://www.sciencepublishinggroup.com/j/sjams ISSN Print: 2376-9491 ISSN Online: 2376-9513 Applied and Computational Mathematics (ACM) http://www.sciencepublishinggroup.com/j/acm ISSN Print: 2328-5605 ISSN Online: 2328-5613 International Journal of Information and Communication Sciences (IJICS) http://www.sciencepublishinggroup.com/j/ijics ISSN Print: 2575-1700 ISSN Online: 2575-1719 Science Discovery (SD) http://www.sciencepublishinggroup.com/j/sd ISSN Print: 2331-0642 ISSN Online: 2331-0650