This week, the ACM (Association for Computing Machinery) CHI conference on Human Factors in Computing Systems (CHI 2026) took place at the Barcelona International Convention Center. CHI is widely regarded as the leading international conference in Human-Computer Interaction. As I did for KDD 2024, I had the privilege of contributing as local co-chair, this time … More ACM CHI 2026
Our article “Refractive datasets as a sensemaking methodology in closed data ecosystems” is already published in Big Data & Society. This is the first paper from a very exciting collaboration with the Search Prompt Integrity & Learning Lab (SPILL), founded by Francesca Tripodi (University of North Carolina at Chapel Hill). The research was led by … More Big Data & Society: Refractive datasets as a sensemaking methodology in closed data ecosystems
Today, the EPJ Data Science journal published our article “Personalisation and profiling using algorithms and not-so-popular Colombian music: goal-directed mechanisms in music emotion recognition”. The main goal of this study led Juan Sebastián Gómez-Cañón (Universitat Pompeu Fabra / Stanford University) and Thomas Magnus Lennie (Durham University / American University in Bulgaria), with Tuomas Eerola (Durham … More EPJ Data Science: Personalisation and profiling using algorithms and not-so-popular Colombian music
Back in the summer, my colleague Franziska (Ziski) Putz from the Wikimedia Foundation Global Advocacy team told me she wanted to propose a contribution for the Mozilla Festival to showcase the Wikipedia Test with real cases from Barcelona. The Wikipedia Test is a tool designed to assess how new technology policies might impact a public-interest … More Mozilla Festival 2025
The ACM Transactions on the Web journal just accepted our article “Language-Agnostic Modeling of Source Reliability on Wikipedia”. The main goal of this project was to generate and assess actionable metrics for source controversiality in Wikipedia. To guarantee universality (i.e. applicability to all Wikipedia language editions), knowledge equity and avoid dependence on the specifics of … More ACM Transactions on the Web: Language-Agnostic Modeling of Source Reliability on Wikipedia
What a week at the Donostia International Physics Center (DIPC)! I had the pleasure of attending the 5th edition of Mestizajes International Workshop on Science and Humanities, where I was invited to share recent research from the Wikimedia Foundation on developing scientific methods to assess source reliability on Wikipedia. The event was deeply motivating as … More Mestizajes International Workshop on Science and Humanities
This week, I had the pleasure of being in Copenhagen to attend the AAAI International Conference on Web and Social Media (ICWSM-25), one of the premier venues for computational social science and social computing. This nineteenth edition marked ten years since I first participated in ICWSM, and has been a very fulfilling experience, as I had … More International Conference on Web and Social Media 2025
Maria Menendez-Blanco, Assistant Professor at the Free University of Bozen-Bolzano (Italy), reached out to invite me as a guest lecturer for their Human-Computer Interaction course within the Bachelor’s program in Communication Sciences and Culture. In this course, the students learn theories and practical skills needed to analyse and design digital technologies that facilitate communication in … More Free University of Bozen-Bolzano Seminar
This week, we hosted Wiki Workshop 2025, the main forum bringing together researchers exploring all aspects of Wikimedia projects (Wikipedia, Wikidata, Wikimedia Commons, Wiktionary, etc.). While the event remained virtual to maximize accessibility, it featured several new elements. Most notably, what had traditionally been a one-day event expanded to two days, allowing for better accommodation … More Wiki Workshop 2025
Wikiherramientas is a series of workshops designed to foster the exchange of knowledge, tools, and best practices for enhancing editing and organizational skills across various Wikimedia projects. Led by Wikimedistas de Uruguay, this initiative is made possible through the efforts of Evelin Heidel, with whom I had the pleasure of co-organizing the developer track of … More Wikiherramientas
Pablo Aragón 