Ana Vranić

complex systems scientist

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Researcher at Scientific Computing Laboratory (SCL), Institute of Physics Belgrade, Serbia.

My work lies at the intersection of statistical physics, complex systems, and network science. Combining theoretical and data-driven approaches, I focus on understanding how people interact and exchange information in digital environments (including interactions with LLMs), how collective phenomena emerge in complex systems, and what drives the dynamics and sustainability of online communities.

Previously, I was a postdoctoral researcher at the Social Physics and Complexity Laboratory (SPAC) at LIP in Portugal, where I investigated biases and the spread of misinformation in online systems. I hold degree from the Faculty of Physics, University of Belgrade, and I completed PhD in complex systems at the Scientific Computing Laboratory (SCL), Institute of Physics Belgrade, in 2023.

news

Jan 01, 2026 Assistant Research Professor at
Scientific Computing Laboratory (SCL) at Institute of Physics Belgrade, Serbia
Oct 20, 2023 Postdoc Position at
Social Physics and Complexity Laboratory (SPAC), LIP, Lisbon, Portugal

selected publications

  1. Sci. Reports
    Reddit deplatforming and cohort mixing in generalist Voat communities
    Aleksandar Tomašević, Ana Vranić, Aleksandra Alorić, and 1 more author
    Scientific Reports, Jul 2026
  2. EPJ Data Science
    Towards Operational Validation of LLM-Agent Social Simulations: A Replicated Study of a Reddit-Like Technology Forum
    Aleksandar Tomašević, Darja Cvetković, Sara Major, and 7 more authors
    EPJ Data Science, Jun 2026
  3. DHOW
    Global Claims: A Multilingual Dataset of Fact-Checked Claims with Veracity, Topic, and Salience Annotations
    Ana Vranić, José Reis, Íris Damião, and 2 more authors
    In Proceedings of the 2nd International Workshop on Diffusion of Harmful Content on Online Web, Oct 2025