Workshop in Honour of Jérôme Lang
"Supporting Decisions: Theory and Computation"
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About a year ago, Jérôme Lang, a highly influential researcher working on topics of decision making in AI and Economics and an important mentor to many fellow researchers, turned 60.
To mark the occasion, please join us for a workshop celebrating Jérôme and his work on Friday, 30 January 2026, at Université Paris Dauphine-PSL.
All sessions will be held in Salle Raymond Aron (2nd floor). Coffee breaks, lunch, and the reception at the end of the day will take place in Espace One.
Special Issue of Theory and Decision
Special Issue of Theory and Decision
The workshop coincides with the publication of a special issue of Theory and Decision in honour of Jérôme, edited by Ali Ozkes and Remzi Sanver. The theme of the special issue is "Supporting Decisions: Theory and Computation" (sorry, production got slightly delayed by Springer, but it should be fully online very soon).
The special issue is a collection of ten articles that showcase some of the many research topics Jérôme contributed to over the years. This collection of articles includes a review article on Jérôme's contributions at the interface of AI and Economics over the past two decades, written by Ulle Endriss and Nicolas Maudet.
Programme
Programme
10:00 — Opening Session
Welcome by Stéphane Airiau, local organising chair
Remarks by Bruno Bouchard, President of Université Paris Dauphine
Ali Ozkes: Introduction to the Special Issue in Honour of Jérôme Lang
Ulle Endriss & Nicolas Maudet: Jérôme Lang's Contributions at the Interface of Economic Theory with AI
11:00 — Coffee Break
11:30 — Invited Talks I
Isabelle Bloch: Morphologics to support decisions
Antoinette Baujard / Jean-François Laslier: From social choice theory to decision support practice
12:15 — Group Photo
12:30 — Lunch
14:00 — Invited Talks II
Piotr Faliszewski: Using multiwinner voting to search for movies
Bill Zwicker: Citation indices revisited: What should we seek in an axiomatic characterization?
Felix Brandt: On Jérôme, gamma, and breaking cycles
15:00 — Coffee Break
15:30 — Panel Session with Former PhD Students of Jérôme
Panelists: Elise Bonzon, Sylvain Bouveret, Meghyn Bienvenu, Virginie Do, Théo Delemazure
Moderation: Ulle Endriss & Nicolas Maudet
16:15 — Coffee Break
16:45 — Invited Talks III
Piotr Skowron: Participatory budgeting with cumulative votes
Dominik Peters: Instant runoff voting: A survey
17:30 — Closing Session
Remarks by El-Mouhoub Mouhoud, President of Université Paris Sciences et Lettres (PSL)
Jérôme Lang: Surprise!
18:00 — Reception
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