Implementing Evaluation Metrics Based on Theories of Democracy in News Comment Recommendation (Hackathon Report). - Myrthe Reuver; Nicolas Mattis (EACL (Hackashop), 2021)

QUARE: 2nd Workshop on Measuring the Quality of Explanations in Recommender Systems. - Oana Inel; Nicolas Mattis; Milda Norkute; Alessandro Piscopo; Timothée Schmude; Sanne Vrijenhoek; Krisztian Balog (RecSys, 2023)

Responsible Opinion Formation on Debated Topics in Web Search. - Alisa Rieger; Tim Draws; Nicolas Mattis; David Maxwell 001; David Elsweiler; Ujwal Gadiraju; Dana McKay; Alessandro Bozzon; Maria Soledad Pera (ECIR (4), 2024)

IDEA - Informfully Dataset with Enhanced Attributes. - Lucien Heitz; Nicolas Mattis; Oana Inel; Wouter van Atteveldt (NORMalize@RecSys, 2024)

Nudging towards news diversity: A theoretical framework for facilitating diverse news consumption through recommender design. - Nicolas Mattis; Philipp K. Masur; Judith Möller; Wouter van Atteveldt (New Media Soc., 2024)