Category Archives: Uncategorized


May 30, 2019

Last week, I visited the EU Commission’s JRC Seville, where Carlos Castillo and I presented our ongoing work on algorithmic fairness.

A preliminary version of our work is posted on arXiv:
Affirmative Action Policies for Top-k Candidates Selection, With an Application to the Design of Policies for University Admissions, by M. Mathioudakis, C. Castillo, G. Barnabo, S. Celis


October 18, 2018

I acted as examiner to 6 PhD defenses at the University of Pisa. Thanks to Prof. Paolo Ferragina for the hospitality!

Video for ‘Crazy World’ event

These days, the University of Helsinki Think Corner (Tiedekulma) is organizing “Crazy World” discussion events that deal with international relations, world leaders and authoritarianism, economy 10 years after Lehman Brothers, world religions and Russia. (Link to event description)

Toni Rönni, one of the organizers of the events, asked me to say a few words about ‘social media and echo chambers’ and our recent research that appeared at the Web Conference (for the paper, follow this ACM Link).

Here is the video.


February 15, 2017

Our tutorial “Polarization on Social Media” has been accepted to the AAAI International Conference on Web and Social Media (ICWSM 2017). We’ll be the usual team, with Aris, Gianmarco, and Kiran. See you in Montreal, then!