New Directions in Social Choice at EC 2024

Location: Room 4400, Yale School of Management (165 Whitney Avenue)

Schedule

8:00-8:30

Breakfast

8:30-8:55

• Invited Talk
  Federated Learning as Public Decision Making
  Ruta Mehta (University of Illinois at Urbana-Champaign)

8:55-10:00

• Metric Distortion Under Probabilistic Voting
  Sahasrajit Sarmasarkar (Stanford University), Mohak Goyal (Stanford University)

• Fair Division with Two-Sided Preferences
  Ayumi Igarashi (University of Tokyo), Yasushi Kawase (University of Tokyo), Warut Suksompong (National University of Singapore), Hanna Sumita (Tokyo Institute of Technology)

• Perceived Fairness in Envy-Free Allocations of Indivisible Goods
  Hadi Hosseini (Penn State University), Joshua Kavner (Rensselaer Polytechnic Institute), Sujoy Sikdar (Binghamton University), Rohit Vaish (Indian Institute of Technology Delhi), Lirong Xia (RPI)

• Learning to Manipulate under Limited Information
  Wesley H. Holliday (UC Berkeley), Alexander Kristoffersen (UC Berkeley), Eric Pacuit (University of Maryland)

• Axioms for AI Alignment from Human Feedback
  Luise Ge (Washington University in St. Louis), Daniel Halpern (Harvard University), Evi Micha (Harvard University), Ariel Procaccia (Harvard University), Itai Shapira (Harvard University), Yevgeniy Vorobeychik (Washington University in St. Louis), Junlin Wu (Washington University)

10:00-10:30

Coffee break

10:30-10:55

• Invited Talk
  Ten Years of the Stanford Participatory Budgeting Platform Learnings and Future Directions
  Lodewijk Gelauff (Stanford University)

10:55-11:35

• Core Stability in Participatory Budgeting: Approximations and Open Questions
  Kamesh Munagala (Duke University), Yiheng Shen (Duke University)

• Proportional Fairness in Non-Centroid Clustering
  Ioannis Caragiannis (Aarhus University), Evi Micha (Harvard University), Nisarg Shah (University of Toronto)

• Federated Assemblies
  Daniel Halpern (Harvard University), Ariel Procaccia (Harvard University), Ehud Shapiro (Weizmann Institute of Science), Nimrod Talmon (Ben-Gurion University)

11:35-12:00

• Open problem session

12:00-1:00

Lunch

1:00-2:00

Poster session

The New Directions in Social Choice workshop, co-located with EC'24 in New Haven, aims to bring together researchers working on topics related to voting and social choice. With a focus on recent developments, new application domains, and new analysis frameworks, the workshop will provide a platform for discussing the latest breakthroughs and charting directions for future work in the field.

Workshop Theme

Social choice theory has been studying collective decision making since the 1950s. Recent progress has deepened our understanding along several axes of innovation:

• Social choice theory has been applied to new application domains, and theoretical progress (e.g., voting in combinatorial domains) has fueled new applications (e.g., participatory budgeting).

• New analysis frameworks have given the field new perspectives on well-known questions. Examples include distortion in metric spaces, best-of-both-world guarantees, and forms of beyond-worst-case analysis.

• Social choice theory has also made progress in accounting for hard-to-model facets of decision-making, such as deliberation and learning systems.

The purpose of this workshop is to highlight recent breakthroughs in these directions, chart directions for future work, and bring together the social choice community at EC.

This half-day workshop will take place on Monday, July 8 at the EC conference. The workshop will feature contributed and invited talks, an open-problem session, and a poster session.

Call for Papers and Submission Instructions

We are soliciting paper contributions on the topics of this workshop. We encourage authors to submit papers using the EC style files, but other formats are also acceptable. Submissions will be lightly reviewed, and we prefer focussed and short versions of papers. We will accept papers both as poster and as oral presentations.

This is a non-archival workshop and we welcome papers that have been recently published or that are currently under review elsewhere. Papers accepted at EC 2024 should not be submitted. Submissions need not be anonymized.

Papers can be submitted via CMT: https://cmt3.research.microsoft.com/SocialChoiceEC2024/Submission/Index

Abstract deadline: Wednesday, 22 May 2024, 23:59 AoE

Full paper deadline: Thursday, 23 May 2024, 23:59 AoE

Notification: Friday, 31 May 2024

Workshop: Monday, 8 July 2024 from 08:00 AM

Organization

Contact: ec24workshop@comsocseminar.org

Workshop organizers:

Ashish Goel, Stanford

Paul Gölz, UC Berkeley & Cornell University

Dominik Peters, CNRS

Program committee:

Martin Bullinger

Bailey Flanigan

Lodewijk Gelauff

Matthias Greger

Daniel Halpern

Anson Kahng

Jérôme Lang

Eric Pacuit

Jannik Peters

Piotr Skowron

Warut Suksompong

Kangning Wang

Tomasz Wąs

Lirong Xia