I am doing a PhD in Computational Social Sciences with Vicenç Gómez at UPF. I am also part of the Computational Social Science Lab (Universität Konstanz,TU Graz, CSH Vienna) with David Garcia as a co-supervisor. I am interested in polarization in social media, online human interaction and algorithmic fairness. My background is in Physics and AI. Usually working with networks and data analysis.

Email: emma.fraxanet[at]upf[dot]edu

Ongoing projects

What's going on?



  • January 2024: Organizer of the Winter Workshop on Complex Systems 2024, which took place in the lovely area of La Garrotxa (Catalunya, Spain).
  • July 2023: Accepted talk for NetSci 2023 in Vienna (in person).
  • July 2023: Preprint out! Unpacking polarization: Antagonism and Alignment in Signed Networks of Online Interaction
  • June 2023: I have been awarded the DTIC Maria de Maeztu award to interdisciplinary thesis in collaboration with the UPF Center for Planetary Wellbeing.
  • June 2023: Finalist at the PhD Workshop DTIC UPF 2023. Watch my video here!
  • January 2023: Attendance to the Winter Workshop on Complex Systems 2023 (WWCS23).
  • December 2022: Seminar talk about patterns of polarization from antagonistic interactions at the Center of Data and Methods Colloquium at Universität Konstanz (Slides ).
  • September 2022: Thesis Proposal defense at Universitat Pompeu Fabra (Proposal Document ).
  • July 2022: Presentation of my work on Dynamics of polarization in signed networks at NetSci 2022 (remote).
  • July 2022: Attendance to IC2S2 2022 (Chicago) to present my work on Polarization in Large Scale Online Political Discussions.
  • July 2022: Presentation of my work on Dynamics of polarization in signed networks at Sunbelt 2022 (remote).
  • July 2022: Attendance to the GAINs summerschool organized by the Santa Fe Institute and the Complexity Science Hub in Vienna.
  • June 2022: Poster presentation and local organization volunteer at WebSci 2022 (Barcelona). poster
  • May 2022: Participation and second place at the PhD Workshop DTIC UPF 2022.
  • March 2022: Attendance to The Great Resignation Workshop at the Complexity Science Hub (Vienna).
  • February 2022: I had a Twitch conversation with @delbuitaltot about what are Computational Social Sciences and why is this field relevant. You can watch the recorded version here (in catalan!).
  • January 2022: I wrote an opinion article about Computational Social Sciences for Metadata. Link to article. (in catalan!).
  • September-April 2022: Research stay at the Complexity Science Hub (Vienna) working with David Garcia's team.

Projects from my undergraduate studies

Other interests

Besides my motivation towards science and programming I also like to collaborate with projects that advocate for diversity in the STEM communities and/or care for the scientific community and its ties with society.

  • I am part of the Equality Comission of the Engineering Department at UPF.
  • I was a volunteer member at the Young IT Girls organization. as a part of the multimedia team (check our podcast #UnCafèAmb!), in which we carried out activities in schools and other centers to bring technology closer to society with a gender perspective.
  • During my years in the Physics bachelor I co-coordinated an artistic project based on recognizing and remarking the work of important women in science in order to fight the lack of female roles in the STEM community. It was also aimed at improving the community relations of Physics, Chemisty and Engineering students in the Faculty of Physics and Chemistry (UB). The project proposal was created and presented to the faculty board on June 2018. To achieve the second goal it was built with several participative activities and contests organized through social media.