Organization and editorial service
- Associate Editor of EPJ Data Science since 2018
- Guest Editor of Proceedings of the National Academy of Sciences (2020)
- Editor of the Journal of Digital Social Research
- General Chair of the European Symposium Series on Societal Challenges
in Computational Social Science 2019: Polarization and Radicalization - Guest Editor of PLOS One (2018)
- Senior program committee member of ICWSM 2016, 2017, 2018, 2019, 2020, and 2021
- Editorial Board Member of Frontiers in ICT and Frontiers in Digital Humanities – Big Data
- Member of the organization committee of the Cyberemotions Workshop Zurich 2011
- Organizer of the ETH Risk Center workshop “Mastering the Challenges of our Digital Society”
- Organizer of the ICWSM Science Slam 2015 – 2019
Conference program committee memberships
- The Web Conference / WWW 2015-2019
- KDD ’17
- International Conference in Computational Social Science 2017-2021
- NetSci 2018-2021
- SocialCom ’13 and’14
- HyperText ’14 and ’15
- WebSci ’16 and ’17
- CSSWS ’15 and ’16, NetSciX ’16, ECIS ’13, ENIC ’14 and ’17, SI ’14
- Complex Networks 2018
Reviewer service [Publons Record]
- In the 95th percentile of review effort in Publons: officially a peer-review ‘hero’
- Nature reviewer 2021
- Science reviewer 2016
- PNAS reviewer 2019, 2020
- Nature Human Behavior reviewer 2018
- Nature Communications reviewer 2015
- Communications of the ACM reviewer 2017
- Journal of the Royal Society Interface reviewer 2015
- Nature Scientific Reports reviewer 2013-2016
- Science Advances reviewer 2016
- EPJ Data Science reviewer 2014-2021
- Social Networks reviewer 2016
- PLOS One reviewer 2013-2020
- Journal of Medical Internet Research reviewer, 2017-2020
- ReScience journal reviewer, 2016
- Policy and Internet reviewer 2013-2015
- Electoral Studies reviewer 2019
- Communication Methods and Measures reviewer 2019
- Future Generation Computer Systems reviewer 2019
- Social Psychological and Personality Science reviewer 2019
- The Information Society reviewer 2018
- Royal Society Open Science reviewer 2018
- Network Science reviewer 2017
- Political Communication reviewer 2016
- ACM Transactions on the Web 2015
- Journal of Experimental Psychology: General reviewer 2016
- Cognitive Systems Research reviewer 2016
- Emotion reviewer 2011
- Frontiers in Psychology reviewer 2017
- Frontiers in Physics reviewer 2015
- Semantic Web Journal reviewer 2016
- Journal of Statistical Mechanics: Theory and Experiment reviewer 2015
- Social Network Analysis and Mining reviewer 2015
- European Physical Journal B reviewer 2013
- Physica A reviewer 2010-2012
- International Journal of Modern Physics C reviewer 2011
- Computer Communications reviewer 2014, 2015
- Information Sciences reviewer 2016
- Journal of Systems and Software reviewer 2014, 2015
- International Journal of Human-Computer Interaction reviewer 2015
Theses and project service
- Referee for ERC Starting Grants, 2017
- Reviewer for the Swiss National Science Foundation, 2019, 2020
- Project proposal reviewer for the Foundation for Polish Science, 2017
- Project proposal reviewer for the Austrian Research Promotion Agency (FFG), 2014
- PhD tribunal member for Dr. Raquel Baños (Universidad de Zaragoza), 2014
- PhD tribunal member for Dr. Pablo Piedrahita (Universidad de Zaragoza), 2017
- PhD external reviewer for Dr. Ignacio Tamarit (Universidad Carlos III Madrid), 2019
- National expert in the PhD Proficiency exam of Markus Zlabinger in TU Wien, 2019
- PhD tribunal member for Dr. Orsolya Vásárhelyi (Central European University), 2020
- PhD tribunal member for Dr. Lisa Posch (TU Graz), 2020