EXPERIMENTS

An important part of the scientific programme of the Summer School on Computational Social Choice will be the session devoted to experiments in computational social choice on Thursday afternoon. Here's what's on offer:

Collectively Training an AI Chatbot   (Jobst Heitzig and Bob Jacobs)
Using a consensus-seeking interactive voting tool, we will collectively decide how an AI chatbot should respond to certain sample questions. This is a social-choice version of what OpenAI and Anthropic are currently using to fine-tune ChatGPT and Claude. If you want to start early, visit amsterdam.vodle.it.

Electing Sequences of Committees   (Robert Bredereck and Paula Böhm)
Take part in our experiment on the election of a sequence of committees. What would be fair? And can you manipulate? Note that the way you vote will determine the kind of sweets to be served at the next coffee break.

Exploring Fairness in Rent Division under Budgets   (Anaëlle Wilczynski)
Choose which solution you prefer in the context of sharing a flat between you and your friends, where both an allocation of rooms to flatmates and everyone’s payment must be decided upon. (Joint work with Stéphane Airiau, Hugo Gilbert, Umberto Grandi, and Jérôme Lang.)

Diversity of Preference Domains   (Clemens Puppe and Matthias Ammann)
Was society in ancient Rome more or less diverse than in medieval China? Is the UK more diverse than Germany? Identifying "societies" with domains of admissible preferences, we seek to answer such questions by eliciting intuitions about the diversity of preference sets by means of simple binary comparisons. (Starts on Tuesday.)

Explainability in Social Choice  (Ulle Endriss and Oliviero Nardi)
Find out how to use computers to explain and justify election outcomes to people. Short presentations at 15:45 and 16:30. Or simply try it out for yourself at demo.illc.uva.nl/justify. (Joint work with Arthur Boixel.)

Working with Preference Data   (Simon Rey)
Explore some of the platforms and tools that have been developed by the research community to work with datasets of reported preferences. We will focus on PrefLib.org, and maybe similar platforms (such as PabuLib.org).

COMSOC at the Open Day   (Amsterdam Group)
How would you go about presenting your research field at a University Open Day or Science Festival? We have developed several games for people to casually engage with concepts from social choice and game theory. Try them, chat with us about outreach … and maybe even win a prize!