
MINISTRY OF EDUCATION VIETNAM ACADEMY OF SCIENCE
AND TRAINING AND TECHNOLOGY
GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY
Michael Omar
AN APPROACH OF ENSEMBLE SPATIAL MACHINE LEARNING
FOR GROUNDWATER DRINKABILITY CLASSIFICATION
DOCTORAL DISSERTATION ON INFORMATION SYSTEM
Hanoi - 2025

BỘ GIÁO DỤC VIỆN HÀN LÂM KHOA HỌC
VÀ ĐÀO TẠO VÀ CÔNG NGHỆ VIỆT NAM
HỌC VIỆN KHOA HỌC VÀ CÔNG NGHỆ
Michael Omar
NGHIÊN CỨU PHÁT TRIỂN PHƯƠNG PHÁP HỌC MÁY
KẾT HỢP THÔNG TIN KHÔNG GIAN CHO BÀI TOÁN
PHÂN LOẠI CHẤT LƯỢNG NƯỚC NGẦM
LUẬN ÁN TIẾN SĨ MÁY TÍNH
NGÀNH: HỆ THỐNG THÔNG TIN
MÃ SỐ: 9 48 01 04
Xác nhận của Học viện Người hướng dẫn 1 Người hướng dẫn 2
Khoa học và Công nghệ (Ký, ghi rõ họ tên) (Ký, ghi rõ họ tên)
Hà Nội - 2025

MINISTRY OF EDUCATION VIETNAM ACADEMY OF SCIENCE
AND TRAINING AND TECHNOLOGY
GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY
Michael Omar
AN APPROACH OF ENSEMBLE SPATIAL MACHINE
LEARNING FOR GROUNDWATER DRINKABILITY
CLASSIFICATION
DOCTORAL DISSERTATION ON COMPUTER
MAJOR: INFORMATION SYSTEMS
CODE: 9 48 01 04
Graduation University of Advisor 1 Advisor 2
Science and Technology’s confirmation (Signature, Full Name) (Signature, Full Name)
Hanoi - 2025

DECLARATION
I hereby declare that the results presented in the discussion are my re-
search work under the guidance of the guidelines. The data and results presented
in the project discussion are completely honest and have not been published in
previous works. Reference data have been fully cited. The thesis uses cited in-
formation from various sources, and all citations are clearly acknowledged. The
research findings co-authored with other researchers have been included in the
thesis with their consent.
This thesis was completed during my time as a doctoral student at the
Vietnam Academy of Science and Technology.
Hanoi, date ... month ... year 2025
Thesis Author
Michael Omar

Acknowledgments
Throughout the process of researching and completing my thesis, I have
been fortunate to receive guidance, assistance, invaluable feedback, and encour-
agement from a diverse group of individuals, including scientists, educators,
peers, and family members.
First and foremost, I would like to extend my deepest gratitude to As-
soc. Prof. Tran Thi Ngan, Assoc. Prof. Nguyen Long Giang and Assoc. Prof. Le
Hoang Son. Their dedicated mentorship and support have been pivotal through-
out my research journey.
I also would like to express my sincere appreciation to the faculty and
scientists at the Institute of Information and Technology, the Institute of Infor-
mation Technology VNU. Their insightful suggestions significantly contributed
to the advancement of my research.
My gratitude extends to the Board of Directors and the Training De-
partment at Graduate University of Science and Technology, Vietnam Academy
of Science and Technology for providing me with the conducive environment
necessary to fulfill my research objectives.
Lastly, I must acknowledge my colleagues, family, and friends, whose un-
wavering encouragement, shared experiences, support, and assistance have been
instrumental in helping me overcome challenges and achieve the results presented
in this thesis.
Hanoi, date ... month ... year 2025
Signed by:
Michael Omar

