Location: Stanford Economics Landau Building, Room 140
10:15–10:45: Poster session (open from 9:00–12:00, we expect highest attendance during coffee break 10:15–10:45)
12:00–13:30: Lunch break
13:30–14:45: Session 1
Georgios Papasotiropoulos, Oskar Skibski, Piotr Skowron, and Tomasz Wąs: Proportional Selection in Networks (12 min)
Patrick Lederer: Proportional Representation in Rank Aggregation (12 min)
Anton Baychkov, Markus Brill, and Markus Utke: Mixed Voting Rules for Participatory Budgeting (12 min)
Xiaolin Bu and Biaoshuai Tao: Truthful and Almost Envy-Free Mechanism of Allocating Indivisible Goods: the Power of Randomness (12 min)
Noga Klain Elmalem, Rica Gonen, and Erel Segal-Halevi: Fairness In Real Estate Division: Reconstruct and Divide (12 min)
Sonja Kraiczy, Edith Elkind, and Isaac Robinson: Streamlining Equal Shares (5 min)
Johannes Brustle, Simone Fioravanti, Tomasz Ponitka, and Jeremy Vollen: The Panel Complexity of Sortition: Is 12 Angry Men Enough? (5 min)
14:45–15:15: Coffee break
15:15–16:31: Session 2
Ratip Emin Berker, Ben Armstrong, Vincent Conitzer, and Nihar B. Shah: Designing Rules to Pick a Rule: Aggregation by Consistency (5 min)
Yifan Feng and Yuxuan Tang: A Mallows-type Model for Preference Learning from (Ranked) Choices (5 min)
David Gamba, Seura Ha, Daniel M. Romero, and Grant Schoenebeck: Who's Heard and Who Decides?: Strategic Incentives in Model-Driven Social Evaluation (12 min)
Paul Gölz, Nika Haghtalab, and Kunhe Yang: Distortion of AI Alignment: Does Preference Optimization Optimize for Preferences? (12 min)
Ashish Goel, Mohak Goyal, and Kamesh Munagala: Metric Distortion of Small-group Deliberation (12 min)
Invited Talk: Moses Charikar: How to appease a majority? (30 min)
Join us for the Second Workshop on New Directions in Social Choice, co-located with the ACM Conference on Economics and Computation (EC'25) at Stanford University on Thursday, July 10, 2025!
This workshop aims to bring together researchers working on topics related to voting and social choice. With a focus on recent developments, new application domains, new analysis frameworks, and the intersection with artificial intelligence, the workshop will provide a platform for discussing the latest breakthroughs and charting directions for future work in the field.
Submission Server -- We are trying out a self-hosted version of HotCRP. If you are experiencing issues, please contact Dominik Peters <mail@dominik-peters.de>.
Social choice theory has been studying collective decision-making since the 1950s. Recent progress has deepened our understanding along several axes of innovation, and this workshop seeks to explore these exciting frontiers:
New Application Domains: Social choice theory is being applied to an expanding range of new areas. Theoretical progress (e.g., voting in combinatorial domains) has fueled new applications (e.g., participatory budgeting, resource allocation, group recommendation).
New Analysis Frameworks: The field has benefited from new perspectives on well-known questions through innovative analysis frameworks. Examples include understanding distortion in metric spaces, developing best-of-both-worlds guarantees, and employing forms of beyond-worst-case analysis.
Accounting for Hard-to-Model Facets: Social choice theory is making strides in incorporating complex, real-world aspects of decision-making, such as deliberation processes, preference learning, strategic behavior under uncertainty, and the impact of information structures.
Social Choice for Artificial Intelligence: There is a growing need to apply social choice principles to the development and governance of AI systems. This includes aggregating diverse human preferences for AI alignment, social choice approaches to fairness in algorithmic decision-making, and designing mechanisms for collective AI control.
The purpose of this workshop is to highlight recent breakthroughs in these directions, chart avenues for future work, and bring together the social choice community at EC.
This half-day workshop will take place in the afternoon (2:00 PM - 5:00 PM) on Thursday, July 10, at the EC'25 conference (which runs July 7-10). The workshop will feature contributed and invited talks, an open-problem session, and a joint poster session with other EC'25 workshops.
We solicit paper contributions on the topics of this workshop. We encourage submissions that explore any of the themes listed above, as well as other novel directions in computational social choice. We encourage authors to submit papers using the EC style files (zip), 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'25 should not be submitted. Submissions need not be anonymized.
Important Dates:
Submission Deadline: [extended by 1 day] Thursday, May 22, Friday, May 23, 2025, 23:59 AoE (Anywhere on Earth)
Notification to Authors: Thursday, June 5, 2025 (coming early on Friday)
Workshop Date: Thursday, July 10, 2025 (2:00 PM - 5:00 PM)
Contact: ec25workshop@comsocseminar.org
Workshop organizers:
Ashish Goel, Stanford
Paul Gölz, Cornell University
Dominik Peters, CNRS