Dr. Grgić has been involved in many research projects since he was a high school student.

The very first work he published was in 1986 in the Journal of Mathematics and Physics, Zagreb, Croatia, when he was only 16. During his first year at the Faculty of Electronic Engineering, he has developed a computational model for presenting mono-electron orbits in atoms.  As his doctoral thesis was in the field of computer science and social networks, he has mainly been focused on social network analysis in his research, but due to his several international jobs he has also researched international relations.

As the Croatian Ambassador, he has created many interesting graphs (sociograms) as personalized gifts for his colleagues, other ambassadors, and many officials, visualizing data in a unique way. His colorful work created out of big data, made him recognizable internationally.

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