2021 4th International Conference on Geoinformatics and Data Analysis (ICGDA 2021), held in virtual platform. On behalf of the Organizing Committee, we wish to express our heart-felt appreciation to the conference chairs, keynote and panel speakers. We would like to express our gratitude and appreciation to all of the committee members and reviewers who helped us maintain the high quality of manuscripts included in the proceedings. We also express our sincere thanks to those who contributed to the success of ICGDA 2021 but whose names may not be listed.


Prof. Salah Bourennane
-Opening remarks

Prof. Hui Xiong (IEEE Fellow)
-Rutgers, The State University of New Jersey, USA
Speech Title: Mobile Analytics: Prospects and Opportunities

Prof. Schahram Dustdar (IEEE Fellow)
-Vienna University of Technology, Austria
Speech Title: Edge Intelligence: The Convergence of Humans, Things, and AI

Prof. Georg Gartner
-Vienna University of Technology, Austria
Speech Title: Location-based Services: Evolution and Development

Prof. Branislav Bajat
-Belgrade University, Serbia
Speech Title:  Machine Learning Spatial Interpolation


Information of Best Presentation Award are as below. Congratulations !

Session 4: Software and Information Engineering
Yoga Afif Nurrahman, Universitas Indonesia, Indonesia  (IE005)
Prioritizing the Software Development Methodologies in Online Gig Economy Project Using Analytic Hierarchy Process

Session 5: Environmental Geography and Geographic Information System
Atsushi Isomura, Nippon Telegraph and Telephone Corporation, Japan (DK007 )
Real-Time Spatial-Temporal Database for Geographic Polygon Data Using HD-Map