Welcome

The honorable,

• Prof. Yoni Nazarathy, Associate Professor at the School of Mathematics and Physics of The University of Queensland, Australia.
• Ts. Dr. Madihah Mohd Saudi, Associate Professor/CIO at Universiti Sains Islam Malaysia (USIM)
• Director General of Higher Education, Research and Technology (Prof. Ir. Nizam, M.Sc., DIC, Ph.D., IPU, Asean Eng.),
• Head of Region V Higher Education Service Institution (Mr. Bimo Widyo Handoko, S.H., M.H.)
• Chairman of Yogyakarta Widya Bakti Education Foundation and staff,
• Deputy Chancellor and Structural Officer of Universitas Teknologi Digital Indonesia,
• Representatives from IEEE Indonesia Chapter and IEEE Central,
• Researchers and conference attendees,
• Ladies and Gentlemen,

Assalaamu'alaikum Wr. Wb.
May peace and health be upon us all.

First of all, let us praise the presence of God Almighty (SWT) for His blessings and grace, even though under the condition of the coronavirus pandemic, we can all still be given health and opportunity to be able to participate in the fourth iSriti international conference online.
On this occasion, allow me to express my sincere appreciation to the Keynote Speaker: Prof. Yoni Nazarathy as an Associate Professor in the School of Mathematics and Physics, The University of Queensland, Australia, and Ts. Dr. Madihah Mohd Saudi, Associate Professor/CIO at Universiti Sains Islam Malaysia (USIM), Malaysia, for willing to share his brilliant ideas and insights to present at this conference.

Dear ladies and gentlemen,
On this occasion, as the Rector of Universitas Teknologi Digital Indonesia (formerly STMIK AKAKOM) Yogyakarta, I would like to welcome you to the 2021 4th ISRITI international conference, I apologize that this year's conference is still being held online, considering that the coronavirus pandemic has not ended yet.

Alhamdulillah, although we are still dealing with the pandemic, the enthusiasm of the researchers can be seen from the number of research articles submitted to us. We accept up to 302 articles from 20 countries. Around 114 articles are accepted and ready to be presented online in a conference forum, with the theme: 'Machine Learning for Data Science'.

As organizers of ISRITI, we are very proud and grateful for the participation of researchers who have been willing to submit their research results, to be published in this international conference. We would also like to thank the keynote speakers, and IEEE, who have trusted and supported this conference from the very beginning.
We still hope that next year, when the conditions of the coronavirus pandemic are under control, we can meet again, face to face, to hold joint scientific conferences from researchers, academics, practitioners, and the government, as well as build networks and exchange scientific information.

Finally, ladies and gentlemen,
On this occasion, I would like to express my utmost gratitude to: • The distinguished keynote speakers, who have been willing to share their valuable knowledge in this conference;
• Director General of Higher Education, Research and Technology, who has provided support in this international conference
• Head of Region V Higher Education Service Institution, for the remarks given
• The fourth ISRITI researchers who have presented and will present their research results;
• The reviewers, who have carefully reviewed the articles from the researchers;
• The moderator, who are more than willing to lead the plenary session;
• IEEE for trusting us to hold this international conference; and
• The committee and the student branch, that has been working hard to prepare for this international conference according to the plan.
Last but not least, as the organizer, I would like to sincerely apologize for any shortcomings or inconveniences during this event.

Thank you very much for your attention, and Wassalaamu'alaikum Wr. Wb.

By saying "Bismillaahirrohmaanirrohiim", I officially open the fourth ISRITI international conference.

Thank You
Yogyakarta, 16 December 2021
Rector,

Totok Suprawoto

WELCOME SPEECH FROM GENERAL CHAIR OF ISRITI 2021

Dear colleagues and friends.

On behalf of the organizing committee, I am delighted to welcome all participants to the 4th International Seminar on Research of Information Technology and Intelligent Systems (ISRITI 2021). This conference is the fourth international conference held by Universitas Teknologi Digital Indonesia (formerly STMIK Akakom), and the second to be held by UTDI in virtual form on December 16th, 2021.

In this conference, the committee decided to choose the following theme: "Machine Learning for Data Science". This highlight was chosen because various advances in the field of AI have recently been attributed to Data Science in which Machine Learning is the core. Therefore, by highlighting that theme in ISRITI 2021, we hope we can raise awareness towards Machine Learning in Data Science.

The aim of the conference is to provide an interactive international forum for sharing and exchanging information on the latest research in the area of information technology, computer sciences, informatics, and related fields. Nearly 11 academicians, researchers, practitioners, and presenters from 20 countries (Indonesia, India, Srilanka, Malaysia, China, Jordan, UK, Canada, Philippines, Iraq, Israel, Thailand, Bangladesh, Poland, Rwanda, Malawi, Australia, Japan, Egypt, and Kuwait) gathered in this event. In total, there are 302 active papers submitted to this conference. Each paper has been reviewed with tight criteria from our invited reviewers. Based on the review result, 114 papers have been accepted, which lead to an acceptance rate of 37.75%.

This conference will not be successful without extensive effort from many parties. First, I would like to thank all keynote speakers for allocating their valuable time to share their knowledge with us. I would also like to express my sincere gratitude to all participants who participate in this conference. Special acknowledgment should go to the Technical Program Committee Chairs, Members, and Reviewers for their thorough and timely reviewing of the papers. We would also like to thank our sponsors: IEEE Indonesia Section and Research and Society Service Institution at Universitas Teknologi Digital Indonesia. Last but not least, recognition should also go to the Local Organizing Committee members who have put enormous effort and support for this conference. At last, we hope that you have an enjoyable and inspiring moment during our conference. Thank you for your participation in ISRITI 2021.

Dr. Bambang Purnomosidi D. P.
Chair of Organizing Committee 4th ISRITI 2021