INTRODUCTION FROM THE CHAIROn behalf of the Organizing Committee, I am delighted to welcome all participants to the 3rd International Conference on Computing and Applied Informatics (ICCAI), which is being held on 18th - 19th September 2018 in Medan, Sumatera Utara, Indonesia. The conference is organized by Faculty of Computer Science and Information Technology, Universitas Sumatera Utara (USU) Medan, Indonesia, is sponsored by IOP publisher and indexed by Scopus. Following the successful ICCAI 2016 and ICCAI 2017, ICCAI 2018 also brings together researchers, lecturers, educators, students and practitioners in order to discuss, share, exchange and to extend their knowledge of new advances on theories and practices in the field of Computing and Applied Informatics, towards a smarter society through research on Data Science.There are 278 papers have been submitted in this year’s conference. Each paper has been reviewed with tight criteria from our invited and voluntary multi-national reviewers according to their respective field of interest. Based on the review results, 123 papers have been accepted, which lead to an acceptance rate of 44.2%. The accepted papers come from some countries, such as Indonesia, Malaysia, Japan, Philippines, Saudi Arabia, China, Nigeria, India, and Turkey.The conference is a prestigious event that would not been successful without extensive effort from many volunteers. I would like to express my sincere appreciation and thanks to all participants and supporters, especially the members of Faculty of Computer Science and Information Technology (Fasilkom-TI). I would also like to express our sincere thanks to our keynote speakers: Prof. Dr. Zhenjiang Shen (Kanazawa University, Japan), Assoc. Prof. Dr. Kardi Teknomo (Ateneo de Manila University, Philippines) and Drs. Mahyuddin K.M. Nasution, M.IT, Ph.D (Universitas Sumatera Utara, Indonesia). Moreover, our sincere gratitude Prof. Dr. Runtung Sitepu, Rector of Universitas Sumatera Utara, and Prof. Dr. Opim Salim Sitompul, MSc, Dean of Faculty of Computer Science and Information Technology, Universitas Sumatera Utara, all presenters, all participants, all reviewers, all the committee members, faculty staff and students for their effort and supports in this conference.Lastly, on behalf of the organizing committee, I would like to welcome you to our third International Conference on Computing and Applied Informatics, ICCAI 2018. Our hope is that you have an enjoyable and inspiring as well as a successful moment during our conference. Thank you for your participation on ICCAI 2018.Dr. Maya Silvi Lydia, M.Sc.Chair ICCAI 2018