THE CHOCO ATLAS

351/527 papers continuizable (66%) · 174 carry a hardness result · new results: 20/26 mirrors attempted (76%) · complexity drops: 6/15 settled hardness mirrors (+2 encoding-dependent)

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VOTING MULTIWINNER & P.B. FAIR ALLOCATION COALITION FORMATION FRONTIER MECHANISMDESIGN · terra incognita · Voting Theory & Axioms Tournament Solutions Weighted Tournaments Dodgson & Young Manipulation ⌂ Bribery & Control street-level view Rationalization Combinatorial Domains Incomplete Information Probabilistic Social Choice Structured Preferences Distortion Multiwinner Voting Participatory Budgeting Apportionment & Districting Envy & Proportionality Shares & Guarantees Markets & Equilibria Chores, Online & Dynamic Cake Cutting Fair Division Theory Matching under Preferences Hedonic Games Weighted Voting Games Judgment Aggregation Computer-Aided Methods & Data Opinion Diffusion & Networks Knockout Tournaments ↘* ↘* THE CHOCO ATLAS charting the continuous mirror of computational social choice 527 papers · 13 venue-years · every pin generated from pipeline runs mirror found no mirror + new result (AI) hardness inside drop same rise N

THE PAPERS

351/527 papers continuizable (66%) · 174 carry a hardness result · new results: 20/26 mirrors attempted (76%) · complexity drops: 6/15 settled hardness mirrors (+2 encoding-dependent)

paperauthorsarea venuemirrorhardnessΔ complexityoutputs
Locally Fair PartitioningPankaj K. Agarwal, Shao-Heng Ko, Kamesh Munagala, Erin TaylorFair Allocation · Fair Division TheoryAAAI 2022triple
Maximizing Nash Social Welfare in 2-Value InstancesHannaneh Akrami, Bhaskar Ray Chaudhury, Martin Hoefer, Kurt Mehlhorn, Marco Schmalhofer, Golnoosh Shahkarami, Giovanna Varricchio, Quentin Vermande, Ernest van WijlandFair Allocation · Envy & ProportionalityAAAI 2022triple
Truth-Tracking via Approval Voting: Size MattersTahar Allouche, Jérôme Lang, Florian YgerVoting · RationalizationAAAI 2022triple
Dimensionality and Coordination in Voting: The Distortion of STVIoannis Anagnostides, Dimitris Fotakis, Panagiotis PatsilinakosVoting · DistortionAAAI 2022triple
Fair and Truthful Giveaway LotteriesTal Arbiv, Yonatan AumannFair Allocation · Fair Division TheoryAAAI 2022triple
Universal and Tight Online Algorithms for Generalized-Mean WelfareSiddharth Barman, Arindam Khan, Arnab MaitiFair Allocation · Chores, Online & DynamicAAAI 2022triple
Truthful and Fair Mechanisms for Matroid-Rank ValuationsSiddharth Barman, Paritosh VermaFair Allocation · Envy & ProportionalityAAAI 2022triple
Truthful Cake SharingXiaohui Bei, Xinhang Lu, Warut SuksompongFair Allocation · Cake CuttingAAAI 2022triple
Almost Full EFX Exists for Four AgentsBen Berger, Avi Cohen, Michal Feldman, Amos FiatFair Allocation · Envy & ProportionalityAAAI 2022triple
Sequential Blocked MatchingNicholas Bishop, Hau Chan, Debmalya Mandal, Long Tran-ThanhFair Allocation · Chores, Online & DynamicAAAI 2022triple
Combating Collusion Rings Is Hard but PossibleNiclas Boehmer, Robert Bredereck, André NichterleinFair Allocation · Envy & ProportionalityAAAI 2022triple
Theory of and Experiments on Minimally Invasive Stability Preservation in Changing Two-Sided Matching MarketsNiclas Boehmer, Klaus Heeger, Rolf NiedermeierCoalition Formation · Matching under PreferencesAAAI 2022triple
A Calculus for Computing Structured Justifications for Election OutcomesArthur Boixel, Ulle Endriss, Ronald de HaanVoting · Voting Theory & AxiomsAAAI 2022triple
Single-Agent Dynamics in Additively Separable Hedonic GamesFelix Brandt, Martin Bullinger, Leo TappeCoalition Formation · Hedonic GamesAAAI 2022triple
On Improving Resource Allocations by SharingRobert Bredereck, Andrzej Kaczmarczyk, Junjie Luo, Rolf Niedermeier, Florian SachseFair Allocation · Envy & ProportionalityAAAI 2022triple
Liquid Democracy with Ranked DelegationsMarkus Brill, Théo Delemazure, Anne-Marie George, Martin Lackner, Ulrike Schmidt-KraepelinVoting · Voting Theory & AxiomsAAAI 2022triple
Individual Representation in Approval-Based Committee VotingMarkus Brill, Jonas Israel, Evi Micha, Jannik PetersMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2022triple
The Metric Distortion of Multiwinner VotingIoannis Caragiannis, Nisarg Shah, Alexandros A. VoudourisMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2022triple
A Little Charity Guarantees Fair Connected Graph PartitioningIoannis Caragiannis, Evi Micha, Nisarg ShahFair Allocation · Envy & ProportionalityAAAI 2022triple
Truthful Aggregation of Budget Proposals with Proportionality GuaranteesIoannis Caragiannis, George Christodoulou, Nicos ProtopapasMultiwinner & Participatory Budgeting · Participatory BudgetingAAAI 2022triple
The Complexity of Learning Approval-Based Multiwinner Voting RulesIoannis Caragiannis, Karl FehrsMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2022triple
Weighted Fairness Notions for Indivisible Items RevisitedMithun Chakraborty, Erel Segal-Halevi, Warut SuksompongFair Allocation · Envy & ProportionalityAAAI 2022triple
Pizza Sharing Is PPA-HardArgyrios Deligkas, John Fearnley, Themistoklis MelissourgosFair Allocation · Cake CuttingAAAI 2022triple
Heterogeneous Facility Location with Limited ResourcesArgyrios Deligkas, Aris Filos-Ratsikas, Alexandros A. VoudourisVoting · Voting Theory & AxiomsAAAI 2022triple
Complexity of Deliberative Coalition FormationEdith Elkind, Abheek Ghosh, Paul GoldbergCoalition Formation · Hedonic GamesAAAI 2022triple
The Price of Justified RepresentationEdith Elkind, Piotr Faliszewski, Ayumi Igarashi, Pasin Manurangsi, Ulrike Schmidt-Kraepelin, Warut SuksompongMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2022triple
The Complexity of Subelection Isomorphism ProblemsPiotr Faliszewski, Krzysztof Sornat, Stanisław SzufaVoting · Voting Theory & AxiomsAAAI 2022triple
Two-Price EquilibriumMichal Feldman, Galia Shabtai, Aner WolfenfeldFair Allocation · Markets & EquilibriaAAAI 2022triple
Hedonic Diversity Games: A Complexity Picture with More than Two ColorsRobert Ganian, Thekla Hamm, Dušan Knop, Šimon Schierreich, Ondřej SuchýCoalition Formation · Hedonic GamesAAAI 2022triple
Fair and Efficient Allocations of Chores under Bivalued PreferencesJugal Garg, Aniket Murhekar, John QinFair Allocation · Chores, Online & DynamicAAAI 2022triple
Approval-Based Committee Voting under Incomplete InformationAviram Imber, Jonas Israel, Markus Brill, Benny KimelfeldMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2022triple
Reforming an Envy-Free MatchingTakehiro Ito, Yuni Iwamasa, Naonori Kakimura, Naoyuki Kamiyama, Yusuke Kobayashi, Yuta Nozaki, Yoshio Okamoto, Kenta OzekiFair Allocation · Envy & ProportionalityAAAI 2022triple
The Complexity of Proportionality Degree in Committee ElectionsŁukasz Janeczko, Piotr FaliszewskiMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2022triple
Worst-Case Voting When the Stakes Are HighAnson Kahng, Gregory KehneVoting · DistortionAAAI 2022triple
The Semi-random Likelihood of Doctrinal ParadoxesAo Liu, Lirong XiaFrontier · Judgment AggregationAAAI 2022triple
Online Elicitation of Necessarily Optimal MatchingsJannik PetersFair Allocation · Envy & ProportionalityAAAI 2022triple
Improved Maximin Guarantees for Subadditive and Fractionally Subadditive Fair Allocation ProblemMasoud Seddighin, Saeed SeddighinFrontier · Computer-Aided Methods & DataAAAI 2022triple
Proportional Public DecisionsPiotr Skowron, Adrian GóreckiMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2022triple
Iterative Calculus of Voting under PluralityFabricio VasselaiVoting · ManipulationAAAI 2022triple
Private Rank Aggregation in Central and Local ModelsDaniel Alabi, Badih Ghazi, Ravi Kumar, Pasin ManurangsiFrontier · Computer-Aided Methods & DataAAAI 2022triple
Hedonic Games with Fixed-Size CoalitionsVittorio Bilò, Gianpiero Monaco, Luca MoscardelliCoalition Formation · Hedonic GamesAAAI 2022triple
Participatory Budgeting with Donations and Diversity ConstraintsJiehua Chen, Martin Lackner, Jan MalyMultiwinner & Participatory Budgeting · Participatory BudgetingAAAI 2022triple
How Many Representatives Do We Need? The Optimal Size of a Congress Voting on Binary IssuesManon Revel, Tao Lin, Daniel HalpernVoting · Voting Theory & AxiomsAAAI 2022triple
Fairness Concepts for Indivisible Items with ExternalitiesFair Allocation · Envy & ProportionalityAAAI 2023triple
Finding Fair Allocations under Budget ConstraintsFair Allocation · Envy & ProportionalityAAAI 2023triple
Now We’re Talking: Better Deliberation Groups through Submodular OptimizationCoalition Formation · Hedonic GamesAAAI 2023triple
Causes of Stability in Dynamic Coalition FormationCoalition Formation · Hedonic GamesAAAI 2023triple
Properties of Position Matrices and Their ElectionsVoting · Voting Theory & AxiomsAAAI 2023triple
Rank Aggregation Using Scoring RulesVoting · Voting Theory & AxiomsAAAI 2023triple
Proportionality in Approval-Based Participatory BudgetingMultiwinner & Participatory Budgeting · Participatory BudgetingAAAI 2023triple
Multiwinner Voting with Possibly Unavailable CandidatesMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2023triple
Fair Division with Prioritized AgentsFair Allocation · Envy & ProportionalityAAAI 2023triple
Topological Distance GamesCoalition Formation · Hedonic GamesAAAI 2023triple
Game Implementation: What Are the Obstructions? not comsocunclassifiedAAAI 2023triple
Complexity of Probabilistic Inference in Random Dichotomous Hedonic GamesCoalition Formation · Hedonic GamesAAAI 2023triple proof
Combinatorial Civic Crowdfunding with Budgeted Agents: Welfare Optimality atCoalition Formation · Weighted Voting GamesAAAI 2023triple
Strategyproofness and Proportionality in Party-Approval Multiwinner ElectionsMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2023triple
Participatory Budgeting Designs for the Real WorldMultiwinner & Participatory Budgeting · Participatory BudgetingAAAI 2023triple
PAC Learning and Stabilizing Hedonic Games: Towards a Unifying Approach.Coalition Formation · Matching under PreferencesAAAI 2023triple
Representation with Incomplete VotesMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2023triple
Optimizing Multiple Simultaneous Objectives for Voting and Facility LocationVoting · DistortionAAAI 2023triple
Class Fairness in Online MatchingFair Allocation · Chores, Online & DynamicAAAI 2023triple
How to Cut a Discrete Cake FairlyFair Allocation · Cake CuttingAAAI 2023triple
Voting with Preference IntensitiesVoting · DistortionAAAI 2023triple
Approximations for Indivisible Concave Allocations with Applications toFair Allocation · Markets & EquilibriaAAAI 2023triple
Strategic Facility Location with Clients That Minimize Total Waiting Time not comsocunclassifiedAAAI 2023triple
Proportional Decisions in Perpetual VotingVoting · Voting Theory & AxiomsAAAI 2023triple
Multiagent MST Cover: Pleasing All Optimally via a Simple Voting RuleVoting · Combinatorial DomainsAAAI 2023triple
Partitioning Friends FairlyCoalition Formation · Hedonic GamesAAAI 2023triple
Differentially Private Condorcet VotingVoting · Probabilistic Social ChoiceAAAI 2023triple
Approval-Based Voting with Mixed GoodsMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2023triple
Facility Location Games with Entrance FeesFrontier · Computer-Aided Methods & DataAAAI 2023triple
Differentially Private Fair DivisionFair Allocation · Envy & ProportionalityAAAI 2023triple
Fast and Interpretable Dynamics for Fisher MarketsFair Allocation · Markets & EquilibriaAAAI 2023triple
Ballot Length in Instant Runoff VotingVoting · Voting Theory & AxiomsAAAI 2023triple
Multi-Stage Facility Location Problems with Transient AgentsVoting · DistortionAAAI 2023triple
Bayesian Optimization-Based Combinatorial Assignment*Fair Allocation · Envy & ProportionalityAAAI 2023triple
Semi-random Impossibilities of Condorcet CriterionVoting · Voting Theory & AxiomsAAAI 2023triple
Tournament Fixing Parameterized by Feedback Vertex Set Number Is FPTVoting · Tournament SolutionsAAAI 2023triple
Truthful Mechanisms for Steiner Tree Problems not comsocunclassifiedAAAI 2023triple
Collusion-Proof and Sybil-Proof Reward Mechanisms for Query Incentive not comsocunclassifiedAAAI 2023triple
Local Justice and Machine Learning: Modeling and Inferring not comsocunclassifiedAAAI 2023triple
An Efficient Algorithm for Fair Multi-Agent Multi-Armed Bandit with Low Regret not comsocunclassifiedAAAI 2023triple
Multi-Unit Auctions for Allocating Chance-Constrained ResourcesFair Allocation · Envy & ProportionalityAAAI 2023triple
Fairness in Contextual Resource Allocation Systems:Fair Allocation · Fair Division TheoryAAAI 2023triple
Maximizing the Probability of Fixation in the Positional Voter Model not comsocunclassifiedAAAI 2023triple
Exploring Tradeoffs in Automated School Redistricting: not comsocunclassifiedAAAI 2023triple
Improved Metric Distortion via Threshold ApprovalsVoting · DistortionAAAI 2024triple
Fair Lotteries for Participatory BudgetingMultiwinner & Participatory Budgeting · Participatory BudgetingAAAI 2024triple
Envy-Free House Allocation under Uncertain PreferencesFair Allocation · Envy & ProportionalityAAAI 2024triple
Nearly Equitable Allocations beyond Additivity and MonotonicityFair Allocation · Envy & ProportionalityAAAI 2024triple
Enhancing the Efficiency of Altruism and Taxes not comsocunclassifiedAAAI 2024triple
Approval-Based Committee Voting in Practice:Multiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2024triple
Completing Priceable Committees:Multiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2024triple
Stability in Online Coalition FormationCoalition Formation · Hedonic GamesAAAI 2024triple
Participation Incentives in Approval-Based Committee ElectionsMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2024triple
Low-Distortion Clustering with Ordinal and Limited Cardinal InformationFrontier · Computer-Aided Methods & DataAAAI 2024triple
Proportional Aggregation of Preferences for Sequential Decision MakingMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2024triple
How to Make Knockout Tournaments More Popular?Voting · Tournament SolutionsAAAI 2024triple
1/2 - Approximate MMS Allocation for Separable Piecewise Linear ConcaveFair Allocation · Shares & GuaranteesAAAI 2024triple
Automated Design of Affine Maximizer Mechanisms in Dynamic Settings not comsocunclassifiedAAAI 2024triple
Independence of Irrelevant Alternatives under the Lens of Pairwise DistortionVoting · DistortionAAAI 2024triple
The Complexity of Fair Division of Indivisible Items with ExternalitiesFair Allocation · Envy & ProportionalityAAAI 2024triple
Refined Characterizations of Approval-Based Committee Scoring RulesMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2024triple
Implications of Distance over Redistricting Maps: Central and Outlier Maps⇤Voting · Bribery & ControlAAAI 2024triple
On Optimal Tradeoffs between EFX and Nash Welfare*Fair Allocation · Envy & ProportionalityAAAI 2024triple
Manipulation-Robust Selection of Citizens’ AssembliesMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2024triple
Project-Fair and Truthful Mechanisms for Budget AggregationMultiwinner & Participatory Budgeting · Participatory BudgetingAAAI 2024triple
Maxileximin Envy Allocations and Connected GoodsFrontier · Computer-Aided Methods & DataAAAI 2024triple
Worst-Case VCG Redistribution Mechanism Design Based on the Lottery TicketVoting · Voting Theory & AxiomsAAAI 2024triple
An Exercise in Tournament Design: When Some Matches Must Be ScheduledVoting · Bribery & ControlAAAI 2024triple proof
Regret Analysis of Repeated Delegated Choice not comsocunclassifiedAAAI 2024triple
Cost Minimization for Equilibrium Transition not comsocunclassifiedAAAI 2024triple
Reachability of Fair Allocations via Sequential ExchangesFair Allocation · Envy & ProportionalityAAAI 2024triple
Repeated Fair Allocation of Indivisible ItemsFair Allocation · Chores, Online & DynamicAAAI 2024triple
Spatial Voting with Incomplete Voter InformationVoting · Incomplete InformationAAAI 2024triple
Maximizing Nash Social Welfare under Two-Sided PreferencesFair Allocation · Envy & ProportionalityAAAI 2024triple
Proportional Representation in Metric Spaces and Low-Distortion CommitteeMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2024triple
Towards Optimal Subsidy Bounds for Envy-Freeable AllocationsFair Allocation · Envy & ProportionalityAAAI 2024triple
Strategyproof Mechanisms for Group-Fair Obnoxious Facility Location ProblemsVoting · ManipulationAAAI 2024triple
Weighted Envy-Freeness for Submodular ValuationsFair Allocation · Envy & ProportionalityAAAI 2024triple
Machine Learning-Powered Combinatorial Clock AuctionFair Allocation · Envy & ProportionalityAAAI 2024triple
Almost Envy-Free Allocations of Indivisible Goods or Chores with EntitlementsFair Allocation · Envy & ProportionalityAAAI 2024triple
The Moderating Effect of Instant Runoff VotingVoting · ManipulationAAAI 2024triple
Unravelling Expressive Delegations: Complexity and Normative AnalysisVoting · Voting Theory & AxiomsAAAI 2024triple
Learning Coalition Structures with GamesCoalition Formation · Hedonic GamesAAAI 2024triple
Greedy-Based Online Fair Allocation with Adversarial Input:Fair Allocation · Chores, Online & DynamicAAAI 2024triple
Eliciting Honest Information from Authors Using Sequential Review*Voting · RationalizationAAAI 2024triple
Fair Allocation of Items in Multiple RegionsFair Allocation · Envy & ProportionalityAAAI 2024triple
Altruism in Facility Location ProblemsFrontier · Computer-Aided Methods & DataAAAI 2024triple
‘Why Didn’t You Allocate This Task to Them?’Fair Allocation · Envy & ProportionalityAAAI 2024triple
Approximation Algorithms for Preference Aggregation Using CP-NetsVoting · Combinatorial DomainsAAAI 2024triple
Axiomatic Aggregations of Abductive Explanations not comsocunclassifiedAAAI 2024triple
Eliciting Kemeny RankingsVoting · Incomplete InformationAAAI 2024triple
Approximating the Shapley Value without Marginal ContributionsCoalition Formation · Weighted Voting GamesAAAI 2024triple
Stable Matchings in Practice: A Constraint Programming ApproachCoalition Formation · Matching under PreferencesAAAI 2024triple
Towards a More Burkean Approach to Computational Social ChoiceVoting · Voting Theory & AxiomsAAAI 2024triple
The Fairness Fair: Bringing Human Perception intoFair Allocation · Fair Division TheoryAAAI 2024triple
Temporal Fairness in Multiwinner VotingMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2024triple
Mixed Fair Division: A SurveyFair Allocation · Chores, Online & DynamicAAAI 2024triple
Epistemic EFX Allocations Exist for Monotone ValuationsHannaneh Akrami, Nidhi RathiFair Allocation · Envy & ProportionalityAAAI 2025triple
Achieving Maximin Share and EFX/EF1 Guarantees SimultaneouslyHannaneh Akrami, Nidhi RathiFair Allocation · Envy & ProportionalityAAAI 2025triple
The Cost Perspective of Liquid Democracy: Feasibility and ControlShiri Alouf-Heffetz, Łukasz Janeczko, Grzegorz Lisowski, Georgios PapasotiropoulosVoting · Bribery & ControlAAAI 2025triple
EF2X Exists for Four AgentsArash Ashuri, Vasilis Gkatzelis, Alkmini SgouritsaFair Allocation · Envy & ProportionalityAAAI 2025triple
Fair Division via the Cake-Cutting ShareYannan Bai, Kamesh Munagala, Yiheng Shen, Ian ZhangFair Allocation · Shares & GuaranteesAAAI 2025triple
Increasing Revenue in Efficient Combinatorial Auctions by Learning to Generate Artificial Competition not comsocMaria-Florina Balcan, Siddharth Prasad, Tuomas SandholmunclassifiedAAAI 2025triple
Proportional Representation in Practice: Quantifying Proportionality in Ordinal ElectionsTuva Bardal, Markus Brill, David McCune, Jannik PetersMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2025triple
Fair Division with Market ValuesSiddharth Barman, Soroush Ebadian, Mohamad Latifian, Nisarg ShahFair Allocation · Envy & ProportionalityAAAI 2025triple
The Distortion of Public-Spirited Participatory BudgetingMark Bedaywi, Bailey Flanigan, Mohamad Latifian, Nisarg ShahMultiwinner & Participatory Budgeting · Participatory BudgetingAAAI 2025triple
Optimal Auction Design for Mixed Bidders not comsocXiaohui Bei, Pinyan Lu, Zhiqi Wang, Tao Xiao, Xiang YanunclassifiedAAAI 2025triple
Nearly Tight Bounds on Approximate Equilibria in Spatial Competition on the LineUmang Bhaskar, Soumyajit PyneVoting · Structured PreferencesAAAI 2025triple
Weak Strategyproofness in Randomized Social ChoiceFelix Brandt, Patrick LedererVoting · ManipulationAAAI 2025triple
Welfare-Optimal Serial Dictatorships Have Polynomial Query ComplexityIoannis Caragiannis, Kurt Mehlhorn, Nidhi RathiFair Allocation · Envy & ProportionalityAAAI 2025triple
Mechanism Design for Connecting Regions Under DisruptionsHau Chan, Jianan Lin, Zining Qin, Chenhao WangVoting · Structured PreferencesAAAI 2025triple
Adaptive Manipulation for Coalitions in Knockout TournamentsJuhi Chaudhary, Hendrik Molter, Meirav ZehaviVoting · ManipulationAAAI 2025triple
Online Learning of Coalition Structures by Selfish AgentsSaar Cohen, Noa AgmonCoalition Formation · Hedonic GamesAAAI 2025triple
Constrained Fair and Efficient AllocationsBenjamin Cookson, Soroush Ebadian, Nisarg ShahFair Allocation · Envy & ProportionalityAAAI 2025triple
Temporal Fair DivisionBenjamin Cookson, Soroush Ebadian, Nisarg ShahFair Allocation · Chores, Online & DynamicAAAI 2025triple
Characterising Simulation-Based Program Equilibria not comsocEmery Cooper, Caspar Oesterheld, Vincent ConitzerunclassifiedAAAI 2025triple
The Complexity of Extending Fair Allocations of Indivisible GoodsArgyrios Deligkas, Eduard Eiben, Robert Ganian, Tiger-Lily Goldsmith, Stavros D. IoannidisFair Allocation · Envy & ProportionalityAAAI 2025triple
Balanced and Fair Partitioning of FriendsArgyrios Deligkas, Eduard Eiben, Stavros D. Ioannidis, Dušan Knop, Šimon SchierreichFair Allocation · Envy & ProportionalityAAAI 2025triple
Eliminating Majority Illusion Is EasyJack Dippel, Max Dupré la Tour, April Niu, Sanjukta Roy, Adrian VettaVoting · Bribery & ControlAAAI 2025triple
Private Blotto: Viewpoint Competition with Polarized Agents not comsocKate Donahue, Jon KleinbergunclassifiedAAAI 2025triple
Every Bit Helps: Achieving the Optimal Distortion with a Few QueriesSoroush Ebadian, Nisarg ShahVoting · DistortionAAAI 2025triple
Verifying Proportionality in Temporal VotingEdith Elkind, Svetlana Obraztsova, Jannik Peters, Nicholas TehVoting · Voting Theory & AxiomsAAAI 2025triple
Distances Between Top-Truncated Elections of Different SizesPiotr Faliszewski, Jitka Mertlová, Pierre Nunn, Stanisław Szufa, Tomasz WąsVoting · RationalizationAAAI 2025triple
Individually Stable Dynamics in Coalition Formation over GraphsAngelo Fanelli, Laurent Gourvès, Ayumi Igarashi, Luca MoscardelliCoalition Formation · Hedonic GamesAAAI 2025triple
Proportionally Fair Makespan ApproximationMichal Feldman, Jugal Garg, Vishnu V. Narayan, Tomasz PonitkaFair Allocation · Envy & ProportionalityAAAI 2025triple
Exact Algorithms and Lower Bounds for Forming Coalitions of Constrained Maximum SizeFoivos Fioravantes, Harmender Gahlawat, Nikolaos MelissinosCoalition Formation · Hedonic GamesAAAI 2025triple
Fair Division with Social ImpactMichele Flammini, Gianluigi Greco, Giovanna VarricchioFair Allocation · Envy & ProportionalityAAAI 2025triple
On the Distortion of Committee Election with 1-Euclidean Preferences and Few Distance QueriesDimitris Fotakis, Laurent Gourvès, Panagiotis PatsilinakosMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2025triple
Forecasting Competitions with Correlated EventsRafael Frongillo, Manuel Lladser, Anish Thilagar, Bo WaggonerFrontier · Computer-Aided Methods & DataAAAI 2025triple
Improved Maximin Share Approximations for Chores by Bin PackingJugal Garg, Xin Huang, Erel Segal-HaleviFair Allocation · Shares & GuaranteesAAAI 2025triple
(Almost Full) EFX for Three (and More) Types of AgentsPratik Ghosal, Vishwa Prakash HV, Prajakta Nimbhorkar, Nithin VarmaFair Allocation · Envy & ProportionalityAAAI 2025triple
Federated AssembliesDaniel Halpern, Ariel D. Procaccia, Ehud Shapiro, Nimrod TalmonMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2025triple
Reducing Leximin Fairness to Utilitarian OptimizationEden Hartman, Yonatan Aumann, Avinatan Hassidim, Erel Segal-HaleviFair Allocation · Envy & ProportionalityAAAI 2025triple
Learning to Manipulate Under Limited InformationWesley H. Holliday, Alexander Kristoffersen, Eric PacuitVoting · ManipulationAAAI 2025triple
Strategyproof Matching of Roommates and RoomsHadi Hosseini, Shivika Narang, Sanjukta RoyCoalition Formation · Matching under PreferencesAAAI 2025triple
Learning Optimal Auctions with Correlated Value Distributions not comsocDa Huo, Zhenzhe Zheng, Fan WuunclassifiedAAAI 2025triple
Metric Distortion of Line-up Elections: The Right Person for the Right JobChristopher Jerrett, Yue Han, Elliot AnshelevichVoting · DistortionAAAI 2025triple
Optimal Bounds for Dissatisfaction in Perpetual VotingAlexander Kozachinskiy, Alexander Shen, Tomasz SteiferVoting · Voting Theory & AxiomsAAAI 2025triple
The (Exact) Price of Cardinality for Indivisible Goods: A Parametric PerspectiveAlexander Lam, Bo Li, Ankang SunFair Allocation · Envy & ProportionalityAAAI 2025triple
Sample Complexity of Linear Regression Models for Opinion Formation in Networks not comsocHaolin Liu, Rajmohan Rajaraman, Ravi Sundaram, Anil Kumar Vullikanti, Omer Wasim, Haifeng XuunclassifiedAAAI 2025triple
Decentralized Convergence to Equilibrium Prices in Trading Networks not comsocEdwin Lock, Benjamin Patrick Evans, Eleonora Kreacic, Sujay Bhatt, Alec Koppel, Sumitra Ganesh, Paul W. GoldbergunclassifiedAAAI 2025triple
Hedging and Approximate Truthfulness in Traditional Forecasting Competitions not comsocMary Monroe, Anish Thilagar, Melody Hsu, Rafael FrongillounclassifiedAAAI 2025triple
On the Power of Strategic Corpus Enrichment in Content Creation Games not comsocHaya Nachimovsky, Moshe TennenholtzunclassifiedAAAI 2025triple
On the Convergence of Tâtonnement for Linear Fisher MarketsTianlong Nan, Yuan Gao, Christian KroerFair Allocation · Fair Division TheoryAAAI 2025triple
Understanding EFX Allocations: Counting and VariantsTzeh Yuan Neoh, Nicholas TehFair Allocation · Envy & ProportionalityAAAI 2025triple
Fair and Efficient Completion of Indivisible GoodsVishwa Prakash HV, Ayumi Igarashi, Rohit VaishFair Allocation · Envy & ProportionalityAAAI 2025triple
Multi-Apartment Rent DivisionAriel D. Procaccia, Benjamin Schiffer, Shirley ZhangFair Allocation · Envy & ProportionalityAAAI 2025triple
Constant-Factor Distortion Mechanisms for k-Committee ElectionHaripriya Pulyassary, Chaitanya SwamyMultiwinner & Participatory Budgeting · Multiwinner VotingAAAI 2025triple
Improved Regret Bounds for Online Fair Division with Bandit LearningBenjamin Schiffer, Shirley ZhangFair Allocation · Chores, Online & DynamicAAAI 2025triple
Facility Location Games with Optional Preferences: A RevisitXingchen Sha, Shuyu Bao, Hau Chan, Vincent Chau, Ken C. K. Fong, Minming LiVoting · ManipulationAAAI 2025triple
Voter Priming Campaigns: Strategies, Equilibria, and AlgorithmsJonathan Shaki, Yonatan Aumann, Sarit KrausVoting · ManipulationAAAI 2025triple
Achieving Balanced Representation in School Choice with Diversity GoalsZhaohong Sun, Makoto YokooCoalition Formation · Matching under PreferencesAAAI 2025triple
Replicating Electoral SuccessKiran Tomlinson, Tanvi Namjoshi, Johan Ugander, Jon KleinbergVoting · Voting Theory & AxiomsAAAI 2025triple
Paid with Models: Optimal Contract Design for Collaborative Machine Learning not comsocBingchen Wang, Zhaoxuan Wu, Fusheng Liu, Bryan Kian Hsiang LowunclassifiedAAAI 2025triple
Deviate or Not: Learning Coalition Structures with Multiple-bit Observations in GamesYixuan Even Xu, Zhe Feng, Fei FangFrontier · Computer-Aided Methods & DataAAAI 2025triple
An Extension-Based Argument-Ranking Semantics: Social Rankings in Abstract Argumentation not comsocLars Bengel, Giovanni Buraglio, Jan Maly, Kenneth SkibaunclassifiedAAAI 2025triple
Fast Computing of Dung Semantics in Acyclic Probabilistic Argumentation Frameworks not comsocStefano Bistarelli, Victor David, Pierre Monnin, Francesco Santini, Carlo TaticchiunclassifiedAAAI 2025triple
Dung’s Argumentation Framework: Unveiling the Expressive Power with Inconsistent Databases not comsocYasir Mahmood, Markus Hecher, Axel-Cyrille Ngonga NgomounclassifiedAAAI 2025triple
Proportionally Fair Matching via Randomized RoundingSharmila Duppala, Nathaniel Grammel, Juan Luque, Calum MacRury, Aravind SrinivasanFair Allocation · Envy & ProportionalityAAAI 2025triple
DiffIM: Differentiable Influence Minimization with Surrogate Modeling and Continuous Relaxation not comsocJunghun Lee, Hyunju Kim, Fanchen Bu, Jihoon Ko, Kijung ShinunclassifiedAAAI 2025triple
Decentralized and Uncoordinated Learning of Stable Matchings: A Game-Theoretic ApproachS. Rasoul Etesami, R. SrikantCoalition Formation · Matching under PreferencesAAAI 2025triple
A Multiagent Path Search Algorithm for Large-Scale Coalition Structure GenerationRedha Taguelmimt, Samir Aknine, Djamila Boukredera, Narayan Changder, Tuomas SandholmCoalition Formation · Hedonic GamesAAAI 2025triple
Are Key-Phrases All That Reviewers Care About? A Comprehensive Benchmarking of Reviewer Matchmaking Systems not comsocSourish Dasgupta, Harsh Sharma, Devansh Patel, Prarthee Desai, Anil K. RoyunclassifiedAAAI 2025triple
Joint Scoring Rules: Competition Between Agents Avoids Performative Prediction not comsocRubi HudsonunclassifiedAAAI 2025triple
Contextual Stochastic Optimization for School Desegregation Policymaking not comsocHongzhao Guan, Nabeel Gillani, Tyler Simko, Jasmine Mangat, Pascal Van HentenryckunclassifiedAAAI 2025triple
A Vision for Reinventing Credible Elections with Artificial Intelligence not comsocBiplav SrivastavaunclassifiedAAAI 2025triple
Incentives for Early ArrivalDengji ZhaoCoalition Formation · Hedonic GamesAAAI 2025triple
Multivariate Algorithmics for Eliminating Envy by Donating GoodsFair Allocation · Envy & ProportionalityAAMAS 2022triple
Proportional Representation in Matching Markets: Selecting Multiple Matchings under Dichotomous PreferencesMultiwinner & Participatory Budgeting · Multiwinner VotingAAMAS 2022triple
Little House (Seat) on the Prairie: Compactness, Gerrymandering, and Population DistributionVoting · Bribery & ControlAAMAS 2022triple
Relaxed Notions of Condorcet-Consistency and Efficiency for Strategyproof Social Decision SchemesVoting · Probabilistic Social ChoiceAAMAS 2022triple
Fair Stable Matching Meets Correlated PreferencesCoalition Formation · Matching under PreferencesAAMAS 2022triple
Beyond Cake Cutting: Allocating Homogeneous Divisible GoodsFair Allocation · Cake CuttingAAMAS 2022triple
Simulating Multiwinner Voting Rules in Judgment AggregationFrontier · Judgment AggregationAAMAS 2022triple
Pareto Optimal and Popular House Allocation with Lower and Upper QuotasCoalition Formation · Matching under PreferencesAAMAS 2022triple
Three-Dimensional Popular Matching with Cyclic PreferencesCoalition Formation · Matching under PreferencesAAMAS 2022triple
Computation and Bribery of Voting Power in Delegative Simple GamesVoting · Bribery & ControlAAMAS 2022triple
How to Fairly Allocate Easy and Difficult ChoresFair Allocation · Chores, Online & DynamicAAMAS 2022triple
Facility Location With Approval Preferences: Strategyproofness and FairnessMultiwinner & Participatory Budgeting · Multiwinner VotingAAMAS 2022triple
Welfare vs. Representation in Participatory BudgetingMultiwinner & Participatory Budgeting · Participatory BudgetingAAMAS 2022triple
One-Sided Matching Markets with Endowments: Equilibria and AlgorithmsFair Allocation · Markets & EquilibriaAAMAS 2022triple
Fair and Truthful Mechanism with Limited SubsidyFair Allocation · Envy & ProportionalityAAMAS 2022triple
Ordinal Maximin Share Approximation for ChoresFair Allocation · Shares & GuaranteesAAMAS 2022triple
Optimal Matchings with One-Sided Preferences: Fixed and Cost-Based QuotasCoalition Formation · Matching under PreferencesAAMAS 2022triple
How Hard is Safe Bribery?Voting · Bribery & ControlAAMAS 2022triple
Equilibria in Schelling Games: Computational Hardness and RobustnessCoalition Formation · Hedonic GamesAAMAS 2022triple
Coalition Formation Games and Social Ranking SolutionsCoalition Formation · Hedonic GamesAAMAS 2022triple
A Graph-Based Algorithm for the Automated Justification of Collective DecisionsVoting · Voting Theory & AxiomsAAMAS 2022triple
How Hard is Bribery in Elections with Randomly Selected VotersVoting · Bribery & ControlAAMAS 2022triple
Position-Based Matching with Multi-Modal PreferencesCoalition Formation · Matching under PreferencesAAMAS 2022triple
Strategy-Proof House Allocation with Existing Tenants over Social NetworksFair Allocation · Envy & ProportionalityAAMAS 2022triple
Tracking Truth by Weighting Proxies in Liquid DemocracyVoting · Voting Theory & AxiomsAAMAS 2022triple
Social Choice Around the Block: On the Computational Social Choice of BlockchainFrontier · Computer-Aided Methods & DataAAMAS 2022triple
Ask and You Shall be Served: Representing & Solving Multi-agent Optimization Problems with Service Requesters and Providers not comsocunclassifiedAAMAS 2023triple
Fair Allocation of Two Types of ChoresFair Allocation · Chores, Online & DynamicAAMAS 2023triple
Fairly Dividing Mixtures of Goods and Chores under Lexicographic PreferencesFair Allocation · Chores, Online & DynamicAAMAS 2023triple
Graphical House AllocationFair Allocation · Envy & ProportionalityAAMAS 2023triple
Approximation Algorithm for Computing Budget-Feasible EF1 AllocationsFair Allocation · Envy & ProportionalityAAMAS 2023triple
Yankee Swap: A Fast and Simple Fair Allocation Mechanism for Matroid Rank ValuationsFair Allocation · Envy & ProportionalityAAMAS 2023triple
Fairness in the Assignment Problem with Uncertain PrioritiesFair Allocation · Envy & ProportionalityAAMAS 2023triple
Possible Fairness for Allocating Indivisible ResourcesFair Allocation · Envy & ProportionalityAAMAS 2023triple
Efficient Nearly-Fair Division with Capacity ConstraintsFair Allocation · Envy & ProportionalityAAMAS 2023triple
Hedonic Games With Friends, Enemies, and Neutrals: Resolving Open Questions and Fine-Grained ComplexityCoalition Formation · Hedonic GamesAAMAS 2023triple
Learning Properties in Simulation-Based Games not comsocunclassifiedAAMAS 2023triple
Epistemic Abstract Argumentation Framework: Formal Foundations, Computation and Complexity not comsocunclassifiedAAMAS 2023triple
Online Coalitional Skill Formation not comsocunclassifiedAAMAS 2023triple
Best of Both Worlds: Agents with EntitlementsFair Allocation · Envy & ProportionalityAAMAS 2023triple
Mitigating Skewed Bidding for Conference Paper AssignmentCoalition Formation · Matching under PreferencesAAMAS 2023triple
Price of Anarchy in a Double-Sided Critical Distribution SystemFair Allocation · Markets & EquilibriaAAMAS 2023triple
Improved EFX Approximation Guarantees under Ordinal-based AssumptionsFair Allocation · Envy & ProportionalityAAMAS 2023triple
Altruism, Collectivism and Egalitarianism: On a Variety of Prosocial Behaviors in Binary Networked Public Goods Games not comsocunclassifiedAAMAS 2023triple
Best of Both Worlds Fairness under EntitlementsFair Allocation · Envy & ProportionalityAAMAS 2023triple
Adapting Stable Matchings to Forced and Forbidden PairsVoting · Bribery & ControlAAMAS 2023triple proof
A Map of Diverse Synthetic Stable Roommates InstancesVoting · Voting Theory & AxiomsAAMAS 2023triple proof
A Redistribution Framework for Diffusion Auctions not comsocunclassifiedAAMAS 2023triple
Social Choice Around Decentralized Autonomous Organizations: On the Computational Social Choice of Digital CommunitiesVoting · Voting Theory & AxiomsAAMAS 2023triple
The Rule-Tool-User Nexus in Digital Collective DecisionsVoting · Voting Theory & AxiomsAAMAS 2023triple
Distributed Mechanism Design in Social Networks not comsocunclassifiedAAMAS 2023triple
A Hotelling-Downs Game for Strategic Candidacy with Binary IssuesVoting · ManipulationAAMAS 2023triple proof
Non-Obvious Manipulability for Single-Parameter Agents and Bilateral Trade not comsocunclassifiedAAMAS 2023triple
Mechanism Design for Improving Accessibility to Public FacilitiesVoting · Structured PreferencesAAMAS 2023triple
Explicit Payments for Obviously Strategyproof Mechanisms not comsocunclassifiedAAMAS 2023triple
Settling the Distortion of Distributed Facility LocationFrontier · Computer-Aided Methods & DataAAMAS 2023triple
Cost Sharing under Private Valuation and Connection ControlFrontier · Computer-Aided Methods & DataAAMAS 2023triple
Facility Location Games with ThresholdsFrontier · Computer-Aided Methods & DataAAMAS 2023triple
Random Majority Opinion Diffusion: Stabilization Time, Absorbing States, and Influential NodesFrontier · Opinion Diffusion & NetworksAAMAS 2023triple
Node Conversion Optimization in Multi-hop Influence NetworksFrontier · Opinion Diffusion & NetworksAAMAS 2023triple
Being an Influencer is Hard: The Complexity of Influence Maximization in Temporal Graphs with a Fixed Source not comsocunclassifiedAAMAS 2023triple
The Grapevine Web: Analysing the Spread of False Information in Social Networks with Corrupted Sources not comsocunclassifiedAAMAS 2023triple
Value-based Resource Matching with Fairness Criteria: Application to Agricultural Water TradingFair Allocation · Fair Division TheoryAAMAS 2024triple
On the Potential and Limitations of Proxy Voting: Delegation with Incomplete VotesVoting · Incomplete InformationAAMAS 2024triple
Collective Robustness of Heterogeneous Decision-Makers Against Stubborn Individuals not comsocunclassifiedAAMAS 2024triple
Extended Ranking Mechanisms for the m -Capacitated Facility Location Problem in Bayesian Mechanism DesignFrontier · Computer-Aided Methods & DataAAMAS 2024triple
Stability of Weighted Majority Voting under Estimated WeightsCoalition Formation · Weighted Voting GamesAAMAS 2024triple
Impact of Tie-Breaking on the Manipulability of ElectionsVoting · ManipulationAAMAS 2024triple
Trust in Shapley: A Cooperative Quest for Global Trust in P2P Network not comsocunclassifiedAAMAS 2024triple
Parameterized Guarantees for Almost Envy-Free AllocationsFair Allocation · Envy & ProportionalityAAMAS 2024triple
Combining Voting and Abstract Argumentation to Understand Online DiscussionsMultiwinner & Participatory Budgeting · Multiwinner VotingAAMAS 2024triple proof
An Online Learning Theory of Brokerage not comsocunclassifiedAAMAS 2024triple
Robust Popular MatchingsCoalition Formation · Matching under PreferencesAAMAS 2024triple
On the Complexity of Pareto-Optimal and Envy-Free LotteriesFair Allocation · Envy & ProportionalityAAMAS 2024triple
Learning a Social Network by Influencing Opinions not comsocunclassifiedAAMAS 2024triple
Fairness and Efficiency Trade-off in Two-sided MatchingCoalition Formation · Matching under PreferencesAAMAS 2024triple
A Simple 1.5-approximation Algorithm for a Wide Range of Maximum Size Stable Matching ProblemsCoalition Formation · Matching under PreferencesAAMAS 2024triple
The Parameterized Complexity of Welfare Guarantees in Schelling SegregationFair Allocation · Fair Division TheoryAAMAS 2024triple
Gerrymandering Planar GraphsVoting · Bribery & ControlAAMAS 2024triple
Computational Aspects of DistortionVoting · DistortionAAMAS 2024triple
Facility Location Games with Fractional Preferences and Limited ResourcesVoting · DistortionAAMAS 2024triple
From Market Saturation to Social Reinforcement: Understanding the Impact of Non-Linearity in Information Diffusion Models not comsocunclassifiedAAMAS 2024triple
Incentives for Early Arrival in Cooperative GamesCoalition Formation · Weighted Voting GamesAAMAS 2024triple
Approximating the Core via Iterative Coalition SamplingCoalition Formation · Hedonic GamesAAMAS 2024triple
Capacity Modification in the Stable Matching ProblemCoalition Formation · Matching under PreferencesAAMAS 2024triple
Nash Stability in Hedonic Skill GamesCoalition Formation · Hedonic GamesAAMAS 2024triple
Weighted Proportional Allocations of Indivisible Goods and Chores: Insights via MatchingsFair Allocation · Envy & ProportionalityAAMAS 2024triple
Facility Location Games with Scaling EffectsVoting · Structured PreferencesAAMAS 2024triple
Tight Approximations for Graphical House AllocationFair Allocation · Envy & ProportionalityAAMAS 2024triple
Keeping the Harmony Between Neighbors: Local Fairness in Graph Fair DivisionFrontier · Computer-Aided Methods & DataAAMAS 2024triple
Discovering Consistent SubelectionsVoting · Structured PreferencesAAMAS 2024triple
To Lead or to be Led: A Generalized Condorcet Jury Theorem under DependenceVoting · Voting Theory & AxiomsAAMAS 2024triple
Catfished! Impacts of Strategic Misrepresentation in Online Dating not comsocunclassifiedAAMAS 2024triple
Veto Core Consistent Preference AggregationVoting · Voting Theory & AxiomsAAMAS 2024triple
Fine-Grained Liquid Democracy for Cumulative BallotsVoting · Voting Theory & AxiomsAAMAS 2024triple
Approximating APS Under Submodular and XOS Valuations with Binary MarginalsFrontier · Computer-Aided Methods & DataAAMAS 2024triple proof
Proportional Fairness in Obnoxious Facility LocationFair Allocation · Fair Division TheoryAAMAS 2024triple
Learning Partner Selection Rules that Sustain Cooperation in Social Dilemmas with the Option of Opting Out not comsocunclassifiedAAMAS 2024triple
Coalition Formation with Bounded Coalition SizeCoalition Formation · Hedonic GamesAAMAS 2024triple
Bounding the Incentive Ratio of the Probabilistic Serial RuleFair Allocation · Envy & ProportionalityAAMAS 2024triple
A Complete Landscape for the Price of Envy-FreenessFair Allocation · Envy & ProportionalityAAMAS 2024triple
A Task-Driven Multi-UAV Coalition Formation MechanismCoalition Formation · Weighted Voting GamesAAMAS 2024triple
Evaluating District-based Election Surveys with Synthetic Dirichlet LikelihoodFrontier · Computer-Aided Methods & DataAAMAS 2024triple
Single-Winner Voting with Alliances: Avoiding the Spoiler EffectVoting · Voting Theory & AxiomsAAMAS 2024triple
Robust Knowledge Extraction from Large Language Models using Social Choice Theory not comsocunclassifiedAAMAS 2024triple
Online Decentralised Mechanisms for Dynamic Ridesharing not comsocunclassifiedAAMAS 2024triple
Multi-user Norm ConsensusFrontier · Judgment AggregationAAMAS 2024triple
Value Alignment in Participatory BudgetingMultiwinner & Participatory Budgeting · Participatory BudgetingAAMAS 2024triple
Battlefield Transfers in Coalitional Blotto GamesCoalition Formation · Weighted Voting GamesAAMAS 2024triple
Algorithmic Filtering, Out-Group Stereotype, and Polarization on Social Media not comsocunclassifiedAAMAS 2024triple
Allocating Contiguous Blocks of Indivisible Chores Fairly: RevisitedFair Allocation · Chores, Online & DynamicAAMAS 2024triple
Reducing Optimism Bias in Incomplete Cooperative GamesCoalition Formation · Weighted Voting GamesAAMAS 2024triple
Positive Intra-Group Externalities in Facility LocationVoting · Structured PreferencesAAMAS 2024triple
Viral Marketing in Social Networks with Competing ProductsFrontier · Opinion Diffusion & NetworksAAMAS 2024triple
Majority-based Preference Diffusion on Social NetworksFrontier · Opinion Diffusion & NetworksAAMAS 2024triple
Maximising the Influence of Temporary Participants in Opinion FormationFrontier · Opinion Diffusion & NetworksAAMAS 2024triple
Controlling Delegations in Liquid DemocracyVoting · Bribery & ControlAAMAS 2024triple
Fair and Efficient Division of a Discrete Cake with Switching Utility LossFair Allocation · Cake CuttingAAMAS 2024triple
Budget-feasible Egalitarian Allocation of Conflicting JobsFair Allocation · Envy & ProportionalityAAMAS 2024triple
Adaptive Incentive Engineering in Citizen-Centric AI not comsocunclassifiedAAMAS 2024triple
Selecting Representative Bodies: An Axiomatic ViewMultiwinner & Participatory Budgeting · Multiwinner VotingAAMAS 2024triple
Who Reviews The Reviewers? A Multi-Level Jury ProblemVoting · Voting Theory & AxiomsAAMAS 2025triple
EFX Allocations and Orientations on Bipartite Multi-graphs: A Complete PictureFair Allocation · Envy & ProportionalityAAMAS 2025triple
Harmonious Balanced Partitioning of a Network of AgentsCoalition Formation · Hedonic GamesAAMAS 2025triple
Impact Measures for Gradual Argumentation SemanticsFrontier · Computer-Aided Methods & DataAAMAS 2025triple
Approximation Ratio for Preference Aggregation Using Tree CP-NetsVoting · Combinatorial DomainsAAMAS 2025triple
Algorithmically Fair Maximization of Multiple Submodular Objective FunctionsFair Allocation · Envy & ProportionalityAAMAS 2025triple
Truthful and Welfare-maximizing Resource Scheduling with Application to Electric VehiclesFair Allocation · Fair Division TheoryAAMAS 2025triple
Probably Correct Optimal Stable Matching for Two-Sided Market Under UncertaintyCoalition Formation · Matching under PreferencesAAMAS 2025triple
Fair Allocation of Divisible Goods under Non-Linear ValuationsFair Allocation · Cake CuttingAAMAS 2025triple
Condorcet Winners and Anscombe's Paradox Under Weighted Binary VotingVoting · Combinatorial DomainsAAMAS 2025triple
On the Gale-Shapley Algorithm for Stable Matchings with a Partial Honesty Nash RefinementCoalition Formation · Matching under PreferencesAAMAS 2025triple
The Price of Anarchy in Spatial Social ChoiceVoting · ManipulationAAMAS 2025triple
Opinion Dynamics with Median AggregationVoting · Voting Theory & AxiomsAAMAS 2025triple
To Spend or to Gain: Online Learning in Repeated Karma Auctions not comsocunclassifiedAAMAS 2025triple
Towards Envy-Freeness Relaxations for General Nonmonotone ValuationsFair Allocation · Envy & ProportionalityAAMAS 2025triple
Maximizing Value in Challenge the Champ TournamentsVoting · Tournament SolutionsAAMAS 2025triple
Computing Efficient Envy-Free Partial Allocations of Indivisible GoodsFair Allocation · Envy & ProportionalityAAMAS 2025triple
Welfare Approximation in Additively Separable Hedonic GamesCoalition Formation · Hedonic GamesAAMAS 2025triple
Towards Fair and Efficient Public Transportation: A Bus Stop ModelMultiwinner & Participatory Budgeting · Multiwinner VotingAAMAS 2025triple
On the Fairness of Additive Welfarist RulesFair Allocation · Envy & ProportionalityAAMAS 2025triple
Game-Theoretically Secure Distributed Protocols for Fair Allocation in Coalitional GamesCoalition Formation · Weighted Voting GamesAAMAS 2025triple
Fair Division in a Variable SettingFair Allocation · Chores, Online & DynamicAAMAS 2025triple
Computing Efficient and Envy-Free Allocations under Dichotomous Preferences using SATFair Allocation · Envy & ProportionalityAAMAS 2025triple
Selecting Interlacing CommitteesMultiwinner & Participatory Budgeting · Multiwinner VotingAAMAS 2025triple
Why Instant-Runoff Voting Is So Resilient to Coalitional Manipulation: Phase Transitions in the Perturbed CultureVoting · ManipulationAAMAS 2025triple
Boosting Sortition via Proportional RepresentationMultiwinner & Participatory Budgeting · Multiwinner VotingAAMAS 2025triple
Temporal Fair Division of Indivisible ItemsFair Allocation · Chores, Online & DynamicAAMAS 2025triple
Learning Real-Life Approval ElectionsVoting · RationalizationAAMAS 2025triple
Eliminating Majority IllusionFrontier · Opinion Diffusion & NetworksAAMAS 2025triple
On the Hardness of Fair Allocation under Ternary ValuationsFair Allocation · Envy & ProportionalityAAMAS 2025triple
Non-obvious Manipulability in Hedonic Games with Friends Appreciation PreferencesCoalition Formation · Hedonic GamesAAMAS 2025triple
The Metric Distortion of Randomized Social Choice Functions: C1 Maximal Lottery Rules and SimulationsVoting · DistortionAAMAS 2025triple
Order Symmetry: A New Fairness Criterion for Assignment MechanismsFair Allocation · Fair Division TheoryAAMAS 2025triple
Fairly Allocating Goods in ParallelFair Allocation · Envy & ProportionalityAAMAS 2025triple
Voter Model Meets Rumour Spreading: A Study of Consensus Protocols on Graphs with Agnostic Nodes not comsocunclassifiedAAMAS 2025triple
Approximating One-Sided and Two-Sided Nash Social Welfare With CapacitiesFair Allocation · Envy & ProportionalityAAMAS 2025triple
Fairness and Optimality in Routing not comsocunclassifiedAAMAS 2025triple
Full Proportional Justified RepresentationMultiwinner & Participatory Budgeting · Multiwinner VotingAAMAS 2025triple
k - ApprovalVeto: A Spectrum of Voting Rules Balancing Metric Distortion and Minority ProtectionVoting · DistortionAAMAS 2025triple
The Bakers and Millers Game with Restricted LocationsCoalition Formation · Hedonic GamesAAMAS 2025triple
Dynamic Coalition Structure Detection in Natural-Language-based InteractionsCoalition Formation · Hedonic GamesAAMAS 2025triple
Soft Condorcet Optimization for Ranking of General AgentsVoting · RationalizationAAMAS 2025triple
Curiosity-Driven Partner Selection Accelerates Convention Emergence in Language Games not comsocunclassifiedAAMAS 2025triple
Rational Capability in Concurrent Games not comsocunclassifiedAAMAS 2025triple
Resource Task GamesCoalition Formation · Hedonic GamesAAMAS 2025triple
Indifferential Privacy: A New Paradigm and Its Applications to Optimal Matching in Dark Pool Auctions not comsocunclassifiedAAMAS 2025triple
Candidate Nomination for Condorcet-consistent Voting RulesVoting · Bribery & ControlAAMAS 2025triple
The Strong Core of Housing Markets with Partial Order PreferencesFair Allocation · Fair Division TheoryAAMAS 2025triple
Housing Market on NetworksFair Allocation · Fair Division TheoryAAMAS 2025triple
The Degree of (Extended) Justified Representation and Its OptimizationMultiwinner & Participatory Budgeting · Multiwinner VotingAAMAS 2025triple
Maximizing Truth Learning in a Social Network is NP-hard not comsocunclassifiedAAMAS 2025triple
FLIGHT: Facility Location Integrating Generalized, Holistic Theory of WelfareFrontier · Computer-Aided Methods & DataAAMAS 2025triple
Asymptotic Existence of Class Envy-free MatchingsFair Allocation · Envy & ProportionalityAAMAS 2025triple
On the Structure of EFX Orientations on GraphsFair Allocation · Envy & ProportionalityAAMAS 2025triple
Incentives for Early Arrival in Cost SharingCoalition Formation · Weighted Voting GamesAAMAS 2025triple
Tyranny of the Minority in Social Choice: a Call to ArmsVoting · ManipulationAAMAS 2025triple
Tackling the Protocol Problem in Automated Negotiation not comsocunclassifiedAAMAS 2025triple
Swap BriberyElkind, Faliszewski, SlinkoVoting · Bribery & Controlcontroltriple proof
Prices Matter for the Parameterized Complexity of Shift BriberyBredereck, Chen, Faliszewski, Nichterlein, NiedermeierVoting · Bribery & Controlcontroltriple proof
Better Collective Decisions via Uncertainty ReductionShiri Alouf-Heffetz, Laurent Bulteau, Edith Elkind, Nimrod Talmon, Nicholas TehVoting · Bribery & ControlIJCAI 2022triple
How Should We Vote? A Comparison of Voting Systems within Social NetworksShiri Alouf-Heffetz, Ben Armstrong, Kate Larson, Nimrod TalmonVoting · Voting Theory & AxiomsIJCAI 2022triple
Envy-Free and Pareto-Optimal Allocations for Agents with Asymmetric Random ValuationsYushi Bai, Paul GölzFair Allocation · Envy & ProportionalityIJCAI 2022triple
Achieving Envy-Freeness with Limited Subsidies under Dichotomous ValuationsSiddharth Barman, Anand Krishna, Yadati Narahari, Soumyarup SadhukhanFair Allocation · Envy & ProportionalityIJCAI 2022triple
Time-Constrained Participatory Budgeting Under Uncertain Project CostsDorothea Baumeister, Linus Boes, Christian LaußmannMultiwinner & Participatory Budgeting · Participatory BudgetingIJCAI 2022triple
Understanding Distance Measures Among ElectionsNiclas Boehmer, Piotr Faliszewski, Rolf Niedermeier, Stanisław Szufa, Tomasz WąsVoting · Voting Theory & AxiomsIJCAI 2022triple
Distortion in Voting with Top-t PreferencesAllan Borodin, Daniel Halpern, Mohamad Latifian, Nisarg ShahVoting · DistortionIJCAI 2022triple
Let’s Agree to Agree: Targeting Consensus for Incomplete Preferences through Majority DynamicsSirin Botan, Simon Rey, Zoi TerzopoulouVoting · Incomplete InformationIJCAI 2022triple
Single-Peaked Opinion UpdatesRobert Bredereck, Anne-Marie George, Jonas Israel, Leon KellerhalsFrontier · Opinion Diffusion & NetworksIJCAI 2022triple
When Votes Change and Committees Should (Not)Robert Bredereck, Till Fluschnik, Andrzej KaczmarczykMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2022triple
Preserving Consistency in Multi-Issue Liquid DemocracyRachael Colley, Umberto GrandiVoting · Combinatorial DomainsIJCAI 2022triple
Voting in Two-Crossing ElectionsAndrei Constantinescu, Roger WattenhoferVoting · Structured PreferencesIJCAI 2022triple
Approval with RunoffThéo Delemazure, Jérôme Lang, Jean-François Laslier, M. Remzi SanverFrontier · Knockout TournamentsIJCAI 2022triple
The Complexity of Envy-Free Graph CuttingArgyrios Deligkas, Eduard Eiben, Robert Ganian, Thekla Hamm, Sebastian OrdyniakFair Allocation · Cake CuttingIJCAI 2022triple
Online Approval Committee ElectionsVirginie Do, Matthieu Hervouin, Jérôme Lang, Piotr SkowronMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2022triple
On the Ordinal Invariance of Power Indices on Coalitional GamesJean-Paul Doignon, Stefano Moretti, Meltem OzturkCoalition Formation · Weighted Voting GamesIJCAI 2022triple
Efficient Resource Allocation with Secretive AgentsSoroush Ebadian, Rupert Freeman, Nisarg ShahFair Allocation · Fair Division TheoryIJCAI 2022triple
Insight into Voting Problem Complexity Using Randomized ClassesZack Fitzsimmons, Edith HemaspaandraVoting · Bribery & ControlIJCAI 2022triple
Approximate Strategyproof Mechanisms for the Additively Separable Group Activity Selection ProblemMichele Flammini, Giovanna VarricchioCoalition Formation · Hedonic GamesIJCAI 2022triple
Two for One & One for All: Two-Sided Manipulation in Matching MarketsHadi Hosseini, Fatima Umar, Rohit VaishCoalition Formation · Matching under PreferencesIJCAI 2022triple
Phragmén Rules for Degressive and Regressive ProportionalityMichał Jaworski, Piotr SkowronMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2022triple
On Discrete Truthful Heterogeneous Two-Facility LocationPanagiotis Kanellopoulos, Alexandros A. Voudouris, Rongsen ZhangFrontier · Computer-Aided Methods & DataIJCAI 2022triple
Plurality Veto: A Simple Voting Rule Achieving Optimal Metric DistortionFatih Erdem Kizilkaya, David KempeVoting · DistortionIJCAI 2022triple
The Dichotomous Affiliate Stable Matching Problem: Approval-Based Matching with Applicant-Employer RelationsMarina Knittel, Samuel Dooley, John DickersonCoalition Formation · Matching under PreferencesIJCAI 2022triple
Explaining Preferences by Multiple Patterns in Voters’ BehaviorSonja Kraiczy, Edith ElkindVoting · Structured PreferencesIJCAI 2022triple
Biased Majority Opinion Dynamics: Exploiting Graph k-dominationHicham Lesfari, Frédéric Giroire, Stéphane PérennesFrontier · Opinion Diffusion & NetworksIJCAI 2022triple
Proportional Budget Allocations: Towards a SystematizationMaaike Los, Zoé Christoff, Davide GrossiMultiwinner & Participatory Budgeting · Participatory BudgetingIJCAI 2022triple
I Will Have Order! Optimizing Orders for Fair Reviewer AssignmentJustin Payan, Yair ZickFair Allocation · Envy & ProportionalityIJCAI 2022triple
Multiwinner Elections under Minimax Chamberlin-Courant Rule in Euclidean SpaceChinmay Sonar, Subhash Suri, Jie XueMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2022triple
Near-Tight Algorithms for the Chamberlin-Courant and Thiele Voting RulesKrzysztof Sornat, Virginia Vassilevska Williams, Yinzhan XuMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2022triple
Maxmin Participatory BudgetingGogulapati Sreedurga, Mayank Ratan Bhardwaj, Yadati NarahariMultiwinner & Participatory Budgeting · Participatory BudgetingIJCAI 2022triple
How to Sample Approval Elections?Stanisław Szufa, Piotr Faliszewski, Łukasz Janeczko, Martin Lackner, Arkadii Slinko, Krzysztof Sornat, Nimrod TalmonVoting · Voting Theory & AxiomsIJCAI 2022triple
Strategy Proof Mechanisms for Facility Location with Capacity LimitsToby WalshVoting · ManipulationIJCAI 2022triple
Manipulating Elections by Changing Voter PerceptionsJunlin Wu, Andrew Estornell, Lecheng Kong, Yevgeniy VorobeychikVoting · Bribery & ControlIJCAI 2022triple
On the Complexity of Calculating Approval-Based Winners in Candidates-Embedded MetricsYongjie YangMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2022triple
Strategyproof Mechanisms for Group-Fair Facility Location ProblemsHouyu Zhou, Minming Li, Hau ChanFrontier · Computer-Aided Methods & DataIJCAI 2022triple
Approximately EFX Allocations for Indivisible ChoresShengwei Zhou, Xiaowei WuFair Allocation · Chores, Online & DynamicIJCAI 2022triple
Local Differential Privacy Meets Computational Social Choice - Resilience under Voter DeletionLiangde Tao, Lin Chen, Lei Xu, Weidong ShiVoting · Bribery & ControlIJCAI 2022triple
DiRe Committee : Diversity and Representation Constraints in Multiwinner ElectionsKunal ReliaMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2022triple
Fair Division of Indivisible Goods: A SurveyGeorgios Amanatidis, Georgios Birmpas, Aris Filos-Ratsikas, Alexandros A. VoudourisFair Allocation · Chores, Online & DynamicIJCAI 2022triple
Intelligence in Strategic Games (Extended Abstract)Pavel Naumov, Yuan YuanFrontier · Judgment AggregationIJCAI 2022triple
Mechanism Design Powered by Social Interactions: A Call to ArmsDengji ZhaoFrontier · Opinion Diffusion & NetworksIJCAI 2022triple
Learning Dissemination Strategies for External Sources in Opinion Dynamic Models with Cognitive Biases not comsocAbdullah Al Maruf, Luyao Niu, Bhaskar Ramasubramanian, Andrew Clark, Radha PoovendranunclassifiedIJCAI 2023triple
Proportionally Fair Online Allocation of Public Goods with PredictionsSiddhartha Banerjee, Vasilis Gkatzelis, Safwan Hossain, Billy Jin, Evi Micha, Nisarg ShahFair Allocation · Chores, Online & DynamicIJCAI 2023triple
On the Role of Memory in Robust Opinion Dynamics not comsocLuca Becchetti, Andrea Clementi, Amos Korman, Francesco Pasquale, Luca Trevisan, Robin VacusunclassifiedIJCAI 2023triple
On a Voter Model with Context-Dependent Opinion Adoption not comsocLuca Becchetti, Vincenzo Bonifaci, Emilio Cruciani, Francesco PasqualeunclassifiedIJCAI 2023triple
Principal-Agent Boolean Games not comsocDavid Hyland, Julian Gutierrez, Michael WooldridgeunclassifiedIJCAI 2023triple
Why Rumors Spread Fast in Social Networks, and How to Stop It not comsocAhad N. Zehmakan, Charlotte Out, Sajjad Hesamipour KhelejanunclassifiedIJCAI 2023triple
Optimal Anytime Coalition Structure Generation Utilizing Compact Solution Space RepresentationRedha Taguelmimt, Samir Aknine, Djamila Boukredera, Narayan Changder, Tuomas SandholmCoalition Formation · Hedonic GamesIJCAI 2023triple
Group Fairness in Set Packing ProblemsSharmila Duppala, Juan Luque, John Dickerson, Aravind SrinivasanFair Allocation · Envy & ProportionalityIJCAI 2023triple
Sampling Ex-Post Group-Fair Rankings not comsocSruthi Gorantla, Amit Deshpande, Anand LouisunclassifiedIJCAI 2023triple
Simplification and Improvement of MMS ApproximationHannaneh Akrami, Jugal Garg, Eklavya Sharma, Setareh TakiFair Allocation · Shares & GuaranteesIJCAI 2023triple
Fair and Efficient Allocation of Indivisible Chores with SurplusHannaneh Akrami, Bhaskar Ray Chaudhury, Jugal Garg, Kurt Mehlhorn, Ruta MehtaFair Allocation · Chores, Online & DynamicIJCAI 2023triple
Non-Obvious Manipulability in Extensive-Form Mechanisms: The Revelation Principle for Single-Parameter AgentsThomas Archbold, Bart de Keijzer, Carmine VentreVoting · Voting Theory & AxiomsIJCAI 2023triple
Schelling Games with Continuous Types not comsocDavide Bilò, Vittorio Bilò, Michelle Döring, Pascal Lenzner, Louise Molitor, Jonas SchmidtunclassifiedIJCAI 2023triple
Delegated Online Search not comsocPirmin Braun, Niklas Hahn, Martin Hoefer, Conrad ScheckerunclassifiedIJCAI 2023triple
Proportionality Guarantees in Elections with Interdependent IssuesMarkus Brill, Evangelos Markakis, Georgios Papasotiropoulos, Jannik PetersVoting · Combinatorial DomainsIJCAI 2023triple
Outsourcing Adjudication to Strategic JurorsIoannis Caragiannis, Nikolaj SchwartzbachVoting · ManipulationIJCAI 2023triple
New Fairness Concepts for Allocating Indivisible ItemsIoannis Caragiannis, Jugal Garg, Nidhi Rathi, Eklavya Sharma, Giovanna VarricchioFair Allocation · Envy & ProportionalityIJCAI 2023triple
Optimal Seat Arrangement: What Are the Hard and Easy Cases?Esra Ceylan, Jiehua Chen, Sanjukta RoyFair Allocation · Fair Division TheoryIJCAI 2023triple
Rainbow Cycle Number and EFX Allocations: (Almost) Closing the GapShayan Chashm Jahan, Masoud Seddighin, Seyed-Mohammad Seyed-Javadi, Mohammad SharifiFair Allocation · Envy & ProportionalityIJCAI 2023triple
Exploring Leximin Principle for Fair Core-Selecting Combinatorial Auctions: Payment Rule Design and Implementation not comsocHao Cheng, Shufeng Kong, Yanchen Deng, Caihua Liu, Xiaohu Wu, Bo An, Chongjun WangunclassifiedIJCAI 2023triple
Deliberation as Evidence Disclosure: A Tale of Two Protocol TypesJulian Chingoma, Adrian HaretVoting · Voting Theory & AxiomsIJCAI 2023triple
Measuring a Priori Voting Power in Liquid DemocracyRachael Colley, Théo Delemazure, Hugo GilbertVoting · Voting Theory & AxiomsIJCAI 2023triple
Measuring and Controlling Divisiveness in Rank AggregationRachael Colley, Umberto Grandi, César Hidalgo, Mariana Macedo, Carlos NavarreteVoting · Voting Theory & AxiomsIJCAI 2023triple
Differentiable Economics for Randomized Affine Maximizer AuctionsMichael Curry, Tuomas Sandholm, John DickersonFrontier · Computer-Aided Methods & DataIJCAI 2023triple
Algorithmics of Egalitarian versus Equitable Sequences of CommitteesEva Michelle Deltl, Till Fluschnik, Robert BredereckMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2023triple
Participatory Budgeting: Data, Tools and AnalysisPiotr Faliszewski, Jarosław Flis, Dominik Peters, Grzegorz Pierczyński, Piotr Skowron, Dariusz Stolicki, Stanisław Szufa, Nimrod TalmonMultiwinner & Participatory Budgeting · Participatory BudgetingIJCAI 2023triple
An Experimental Comparison of Multiwinner Voting Rules on Approval ElectionsPiotr Faliszewski, Martin Lackner, Krzysztof Sornat, Stanisław SzufaMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2023triple
Diversity, Agreement, and Polarization in ElectionsPiotr Faliszewski, Andrzej Kaczmarczyk, Krzysztof Sornat, Stanisław Szufa, Tomasz WąsVoting · Voting Theory & AxiomsIJCAI 2023triple
Strategic Resource Selection with Homophilic Agents not comsocJonathan Gadea Harder, Simon Krogmann, Pascal Lenzner, Alexander SkopalikunclassifiedIJCAI 2023triple
New Algorithms for the Fair and Efficient Allocation of Indivisible ChoresJugal Garg, Aniket Murhekar, John QinFair Allocation · Chores, Online & DynamicIJCAI 2023triple
First-Choice Maximality Meets Ex-ante and Ex-post FairnessXiaoxi Guo, Sujoy Sikdar, Lirong Xia, Yongzhi Cao, Hanpin WangFair Allocation · Envy & ProportionalityIJCAI 2023triple
A Unifying Formal Approach to Importance Values in Boolean Functions not comsocHans Harder, Simon Jantsch, Christel Baier, Clemens DubslaffunclassifiedIJCAI 2023triple
Fairly Allocating Goods and (Terrible) ChoresHadi Hosseini, Aghaheybat Mammadov, Tomasz WąsFair Allocation · Chores, Online & DynamicIJCAI 2023triple
On Lower Bounds for Maximin Share GuaranteesHalvard HummelFair Allocation · Shares & GuaranteesIJCAI 2023triple
Fair Division with Two-Sided PreferencesAyumi Igarashi, Yasushi Kawase, Warut Suksompong, Hanna SumitaFair Allocation · Envy & ProportionalityIJCAI 2023triple
Ties in Multiwinner Approval VotingŁukasz Janeczko, Piotr FaliszewskiMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2023triple
Matchings under One-Sided Preferences with Soft QuotasSanthini K. A., Raghu Raman Ravi, Meghana NasreFair Allocation · Envy & ProportionalityIJCAI 2023triple
Convergence in Multi-Issue Iterative Voting under UncertaintyJoshua Kavner, Reshef Meir, Francesca Rossi, Lirong XiaVoting · Combinatorial DomainsIJCAI 2023triple
Random Assignment of Indivisible Goods under ConstraintsYasushi Kawase, Hanna Sumita, Yu YokoiFair Allocation · Envy & ProportionalityIJCAI 2023triple
Truthful Fair Mechanisms for Allocating Mixed Divisible and Indivisible GoodsZihao Li, Shengxin Liu, Xinhang Lu, Biaoshuai TaoFair Allocation · Envy & ProportionalityIJCAI 2023triple
Approximating Fair Division on D-Claw-Free GraphsZbigniew LoncFair Allocation · Shares & GuaranteesIJCAI 2023triple
Fair Division of a Graph into Compact BundlesJayakrishnan MadathilFair Allocation · Envy & ProportionalityIJCAI 2023triple
Deliberation and Voting in Approval-Based Multi-Winner ElectionsKanav Mehra, Nanda Kishore Sreenivas, Kate LarsonMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2023triple
Learning Efficient Truthful Mechanisms for Trading Networks not comsocTakayuki Osogami, Segev Wasserkrug, Elisheva S. ShamashunclassifiedIJCAI 2023triple
Participatory Budgeting with Multiple Degrees of Projects and Ranged Approval VotesGogulapati SreedurgaMultiwinner & Participatory Budgeting · Participatory BudgetingIJCAI 2023triple
Error in the Euclidean Preference ModelLuke Thorburn, Maria Polukarov, Carmine VentreVoting · Structured PreferencesIJCAI 2023triple
Maximin-Aware Allocations of Indivisible Chores with Symmetric and Asymmetric AgentsTianze Wei, Bo Li, Minming LiFair Allocation · Chores, Online & DynamicIJCAI 2023triple
Ordinal Hedonic Seat Arrangement under Restricted Preference Domains: Swap Stability and PopularityAnaëlle WilczynskiCoalition Formation · Hedonic GamesIJCAI 2023triple
Truthful Auctions for Automated Bidding in Online Advertising not comsocYidan Xing, Zhilin Zhang, Zhenzhe Zheng, Chuan Yu, Jian Xu, Fan Wu, Guihai ChenunclassifiedIJCAI 2023triple
Approximate Envy-Freeness in Graphical Cake CuttingSheung Man Yuen, Warut SuksompongFair Allocation · Cake CuttingIJCAI 2023triple
Incentive-Compatible Selection for One or Two InfluentialsYuxin Zhao, Yao Zhang, Dengji ZhaoFrontier · Opinion Diffusion & NetworksIJCAI 2023triple
TDG4Crowd:Test Data Generation for Evaluation of Aggregation Algorithms in CrowdsourcingYili Fang, Chaojie Shen, Huamao Gu, Tao Han, Xinyi DingFrontier · Computer-Aided Methods & DataIJCAI 2023triple
Complex Contagion Influence Maximization: A Reinforcement Learning ApproachHaipeng Chen, Bryan Wilder, Wei Qiu, Bo An, Eric Rice, Milind TambeFrontier · Opinion Diffusion & NetworksIJCAI 2023triple proof
Online Certification of Preference-Based Fairness for Personalized Recommender Systems (Extended Abstract)Virginie Do, Sam Corbett-Davies, Jamal Atif, Nicolas UsunierFair Allocation · Fair Division TheoryIJCAI 2023triple
Task Allocation on Networks with Execution Uncertainty (Extended Abstract)∗Yao Zhang, Xiuzhen Zhang, Dengji ZhaoFrontier · Computer-Aided Methods & DataIJCAI 2023triple
Complexity Results and Exact Algorithms for Fair Division of Indivisible Items: A SurveyTrung Thanh Nguyen, Jörg RotheFair Allocation · Envy & ProportionalityIJCAI 2023triple
Ordinal Maximin Share Approximation for Goods (Extended Abstract)Hadi Hosseini, Andrew Searns, Erel Segal-HaleviFair Allocation · Shares & GuaranteesIJCAI 2023triple
Learning to Design Fair and Private Voting Rules (Extended Abstract)Farhad Mohsin, Ao Liu, Pin-Yu Chen, Francesca Rossi, Lirong XiaVoting · Voting Theory & AxiomsIJCAI 2023triple
Pushing the Limits of Fairness in Algorithmic Decision-MakingNisarg ShahFrontier · Computer-Aided Methods & DataIJCAI 2023triple
Scalable Mechanism Design for Multi-Agent Path FindingPaul Friedrich, Yulun Zhang, Michael Curry, Ludwig Dierks, Stephen McAleer, Jiaoyang Li, Tuomas Sandholm, Sven SeukenFrontier · Computer-Aided Methods & DataIJCAI 2024triple
Endogenous Energy Reactive Modules Games: Modelling Side Payments among Resource-Bounded AgentsJulian Gutierrez, David Hyland, Muhammad Najib, Giuseppe Perelli, Michael WooldridgeCoalition Formation · Hedonic GamesIJCAI 2024triple
Parameterized Complexity of Kidney Exchange RevisitedÚrsula Hébert-Johnson, Daniel Lokshtanov, Chinmay Sonar, Vaishali SurianarayananCoalition Formation · Matching under PreferencesIJCAI 2024triple
Individual Fairness under Group Fairness Constraints in Bipartite Matching - One Framework to Approximate Them AllAtasi Panda, Anand Louis, Prajakta NimbhorkarFair Allocation · Fair Division TheoryIJCAI 2024triple
Fostering Collective Action in Complex Societies Using Community-Based AgentsJonathan Skaggs, Michael Richards, Melissa Morris, Michael A. Goodrich, Jacob W. CrandallCoalition Formation · Hedonic GamesIJCAI 2024triple
Faster Optimal Coalition Structure Generation via Offline Coalition Selection and Graph-Based SearchRedha Taguelmimt, Samir Aknine, Djamila Boukredera, Narayan Changder, Tuomas SandholmCoalition Formation · Hedonic GamesIJCAI 2024triple
Optimizing Viscous DemocracyBen Armstrong, Shiri Alouf-Heffetz, Nimrod TalmonVoting · Voting Theory & AxiomsIJCAI 2024triple
Facility Location Problems with Capacity Constraints: Two Facilities and BeyondGennaro Auricchio, Zihe Wang, Jie ZhangFrontier · Computer-Aided Methods & DataIJCAI 2024triple
Welfare Loss in Connected Resource AllocationXiaohui Bei, Alexander Lam, Xinhang Lu, Warut SuksompongFair Allocation · Envy & ProportionalityIJCAI 2024triple
Computing Optimal Equilibria in Repeated Games with RestartsRatip Emin Berker, Vincent ConitzerFrontier · Computer-Aided Methods & DataIJCAI 2024triple
Evaluation of Project Performance in Participatory BudgetingNiclas Boehmer, Piotr Faliszewski, Łukasz Janeczko, Dominik Peters, Grzegorz Pierczyński, Šimon Schierreich, Piotr Skowron, Stanisław SzufaMultiwinner & Participatory Budgeting · Participatory BudgetingIJCAI 2024triple
Randomized Learning-Augmented Auctions with Revenue GuaranteesIoannis Caragiannis, Georgios KalantzisFrontier · Computer-Aided Methods & DataIJCAI 2024triple
Parameterized Analysis of Bribery in Challenge the Champ TournamentsJuhi Chaudhary, Hendrik Molter, Meirav ZehaviVoting · Bribery & ControlIJCAI 2024triple
On the Pursuit of EFX for Chores: Non-existence and ApproximationsVasilis Christoforidis, Christodoulos SantorinaiosFair Allocation · Chores, Online & DynamicIJCAI 2024triple
Online Learning of Partitions in Additively Separable Hedonic GamesSaar Cohen, Noa AgmonCoalition Formation · Hedonic GamesIJCAI 2024triple
Couples Can Be Tractable: New Algorithms and Hardness Results for the Hospitals/Residents Problem with CouplesGergely Csáji, David Manlove, Iain McBride, James TrimbleCoalition Formation · Matching under PreferencesIJCAI 2024triple
Popular and Dominant Matchings with Uncertain and Multimodal PreferencesGergely CsájiCoalition Formation · Matching under PreferencesIJCAI 2024triple
Aggregation of Continuous Preferences in One DimensionAlberto Del Pia, Dušan Knop, Alexandra Lassota, Krzysztof Sornat, Nimrod TalmonVoting · Structured PreferencesIJCAI 2024triple
Comparing Ways of Obtaining Candidate Orderings from Approval BallotsThéo Delemazure, Chris Dong, Dominik Peters, Magdalena TydrichovaVoting · Structured PreferencesIJCAI 2024triple proof
Selecting the Most Conflicting Pair of CandidatesThéo Delemazure, Łukasz Janeczko, Andrzej Kaczmarczyk, Stanisław SzufaMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2024triple
Truthful Interval CoveringArgyrios Deligkas, Aris Filos-Ratsikas, Alexandros A. VoudourisVoting · ManipulationIJCAI 2024triple
Individual Rationality in Topological Distance Games Is Surprisingly HardArgyrios Deligkas, Eduard Eiben, Dušan Knop, Šimon SchierreichCoalition Formation · Hedonic GamesIJCAI 2024triple
Metric Distortion with Elicited Pairwise ComparisonsSoroush Ebadian, Daniel Halpern, Evi MichaVoting · DistortionIJCAI 2024triple
Weighted EF1 and PO Allocations with Few Types of Agents or ChoresJugal Garg, Aniket Murhekar, John QinFair Allocation · Chores, Online & DynamicIJCAI 2024triple
Getting More by Knowing Less: Bayesian Incentive Compatible Mechanisms for Fair DivisionVasilis Gkatzelis, Alexandros Psomas, Xizhi Tan, Paritosh VermaFair Allocation · Fair Division TheoryIJCAI 2024triple
Determining Winners in Elections with Absent VotesQishen Han, Amelie Marian, Lirong XiaVoting · Incomplete InformationIJCAI 2024triple
Fair Distribution of Delivery OrdersHadi Hosseini, Shivika Narang, Tomasz WąsFair Allocation · Envy & ProportionalityIJCAI 2024triple
Sampling Winners in Ranked Choice VotingMatthew Iceland, Anson Kahng, Joseph SaberVoting · Incomplete InformationIJCAI 2024triple
The Distortion of Threshold Approval MatchingMohamad Latifian, Alexandros A. VoudourisFair Allocation · Fair Division TheoryIJCAI 2024triple
Polynomial Time Presolve Algorithms for Rotation-Based Models Solving the Robust Stable Matching ProblemSulian Le Bozec-Chiffoleau, Charles Prud'homme, Gilles SimoninCoalition Formation · Matching under PreferencesIJCAI 2024triple
Allocating Mixed Goods with Customized Fairness and Indivisibility RatioBo Li, Zihao Li, Shengxin Liu, Zekai WuFair Allocation · Envy & ProportionalityIJCAI 2024triple
Vulnerabilities of Single-Round Incentive Compatibility in Auto-bidding: Theory and Evidence from ROI-Constrained Online Advertising Markets not comsocJuncheng Li, Pingzhong TangunclassifiedIJCAI 2024triple
Ordinal Maximin Guarantees for Group Fair DivisionPasin Manurangsi, Warut SuksompongFair Allocation · Shares & GuaranteesIJCAI 2024triple
Toward Completing the Picture of Control in Schulze and Ranked Pairs ElectionsCynthia Maushagen, David Niclaus, Paul Nüsken, Jörg Rothe, Tessa SeegerVoting · Bribery & ControlIJCAI 2024triple
Computational Complexity of Verifying the Group No-show ParadoxFarhad Mohsin, Qishen Han, Sikai Ruan, Pin-Yu Chen, Francesca Rossi, Lirong XiaVoting · Voting Theory & AxiomsIJCAI 2024↘*triple proof
Nonparametric Detection of Gerrymandering in Multiparty Plurality ElectionsDariusz Stolicki, Wojciech Słomczyński, Stanisław SzufaVoting · Bribery & ControlIJCAI 2024triple
Enabling Sustainable Freight Forwarding Network via Collaborative GamesPang-Jin Tan, Shih-Fen Cheng, Richard ChenCoalition Formation · Weighted Voting GamesIJCAI 2024triple
Mechanisms That Play a Game, Not Toss a CoinToby WalshFrontier · Computer-Aided Methods & DataIJCAI 2024triple
Improved Approximation of Weighted MMS Fairness for Indivisible ChoresFangxiao Wang, Bo Li, Pinyan LuFair Allocation · Shares & GuaranteesIJCAI 2024triple
A Complete Landscape of EFX Allocations on Graphs: Goods, Chores and Mixed MannaYu Zhou, Tianze Wei, Minming Li, Bo LiFair Allocation · Envy & ProportionalityIJCAI 2024triple
Learning Conditional Preference Networks: An Approach Based on the Minimum Description Length PrinciplePierre-François Gimenez, Jérôme MenginVoting · Combinatorial DomainsIJCAI 2024triple
From Skepticism to Acceptance: Simulating the Attitude Dynamics Toward Fake News not comsocYuhan Liu, Xiuying Chen, Xiaoqing Zhang, Xing Gao, Ji Zhang, Rui YanunclassifiedIJCAI 2024triple
Guide to Numerical Experiments on Elections in Computational Social ChoiceNiclas Boehmer, Piotr Faliszewski, Łukasz Janeczko, Andrzej Kaczmarczyk, Grzegorz Lisowski, Grzegorz Pierczyński, Simon Rey, Dariusz Stolicki, Stanisław Szufa, Tomasz WąsVoting · Voting Theory & AxiomsIJCAI 2024triple
Strategic Aspects of Stable Matching Markets: A SurveyHadi Hosseini, Shraddha PathakCoalition Formation · Matching under PreferencesIJCAI 2024triple
Budget Feasible Mechanisms: A Survey not comsocXiang Liu, Hau Chan, Minming Li, Weiwei WuunclassifiedIJCAI 2024triple
A Survey on Rank AggregationSiyi Wang, Qi Deng, Shiwei Feng, Hong Zhang, Chao LiangVoting · Voting Theory & AxiomsIJCAI 2024triple
Voting by Axioms (Extended Abstract)Marie Christin Schmidtlein, Ulle EndrissVoting · Voting Theory & AxiomsIJCAI 2024triple
Algorithmic Fairness in Distribution of Resources and TasksHadi HosseiniFair Allocation · Fair Division TheoryIJCAI 2024triple
Expanding the Reach of Social Choice TheoryWarut SuksompongFrontier · Knockout TournamentsIJCAI 2024triple
EF1 and EFX OrientationsArgyrios Deligkas, Eduard Eiben, Tiger-Lily Goldsmith, Viktoriia KorchemnaFair Allocation · Envy & ProportionalityIJCAI 2025triple
Argument-based Multi-Issue Negotiation not comsocThalya Fossey, Jean-Guy Mailly, Pavlos MoraitisunclassifiedIJCAI 2025triple
Online Resource Sharing: Better Robust Guarantees via Randomized StrategiesDavid X. Lin, Daniel Hall, Giannis Fikioris, Siddhartha Banerjee, Éva TardosFair Allocation · Chores, Online & DynamicIJCAI 2025triple
Equitable Mechanism Design for Facility LocationToby WalshVoting · DistortionIJCAI 2025triple
Improved Rank Aggregation Under Fairness ConstraintDiptarka Chakraborty, Himika Das, Sanjana Dey, Alvin Hong Yao YanVoting · Weighted TournamentsIJCAI 2025triple
Distance Preservation GamesHaris Aziz, Hau Chan, Patrick Lederer, Shivika Narang, Toby WalshCoalition Formation · Hedonic GamesIJCAI 2025triple
How to Resolve Envy by Adding GoodsMatthias Bentert, Robert Bredereck, Eva Deltl, Pallavi Jain, Leon KellerhalsFair Allocation · Envy & ProportionalityIJCAI 2025triple
Constrained Serial Dictatorships Can Be FairSylvain Bouveret, Hugo Gilbert, Jérôme Lang, Guillaume MérouéFair Allocation · Envy & ProportionalityIJCAI 2025triple
Settling the Complexity of Popularity in Additively Separable and Fractional Hedonic GamesMartin Bullinger, Matan GilboaCoalition Formation · Hedonic GamesIJCAI 2025triple
Multi-Organizational Scheduling: Individual Rationality, Optimality, and Complexity not comsocJiehua Chen, Martin Durand, Christian HatschkaunclassifiedIJCAI 2025triple
Maximin Share Guarantees for Few Agents with Subadditive ValuationsGeorge Christodoulou, Vasilis Christoforidis, Symeon Mastrakoulis, Alkmini SgouritsaFair Allocation · Shares & GuaranteesIJCAI 2025triple
Decentralized Online Learning by Selfish Agents in Coalition FormationSaar Cohen, Noa AgmonCoalition Formation · Hedonic GamesIJCAI 2025triple
Inverse Game Theory: An Incenter-Based Approach not comsocLvye Cui, Haoran Yu, Pierre Pinson, Dario PaccagnanunclassifiedIJCAI 2025triple
Not in My Backyard! Temporal Voting Over Public ChoresEdith Elkind, Tzeh Yuan Neoh, Nicholas TehVoting · Combinatorial DomainsIJCAI 2025triple
Participatory Budgeting Project Strength via Candidate ControlPiotr Faliszewski, Łukasz Janeczko, Dušan Knop, Jan Pokorný, Šimon Schierreich, Mateusz Słuszniak, Krzysztof SornatMultiwinner & Participatory Budgeting · Participatory BudgetingIJCAI 2025triple
EFX Feasible Scheduling for Time-dependent ResourcesJiazhu Fang, Qizhi Fang, Minming Li, Wenjing LiuFair Allocation · Envy & ProportionalityIJCAI 2025triple
Non-Obvious Manipulability in Additively Separable and Fractional Hedonic GamesDiodato Ferraioli, Giovanna VarricchioCoalition Formation · Hedonic GamesIJCAI 2025triple
Optimal Metric Distortion for Matching on the LineAris Filos-Ratsikas, Vasilis Gkatzelis, Mohamad Latifian, Emma Rewinski, Alexandros A. VoudourisVoting · DistortionIJCAI 2025triple
More Efforts Towards Fixed-Parameter Approximability of Multiwinner RulesSushmita Gupta, Pallavi Jain, Souvik Saha, Saket Saurabh, Anannya UpasanaMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2025triple
The Proportional Veto Principle for Approval BallotsDaniel Halpern, Ariel D. Procaccia, Warut SuksompongVoting · Voting Theory & AxiomsIJCAI 2025triple
Dividing Conflicting Items FairlyAyumi Igarashi, Pasin Manurangsi, Hirotaka YonedaFair Allocation · Envy & ProportionalityIJCAI 2025triple
Efficient Algorithms for Electing Successive CommitteesPallavi Jain, Andrzej KaczmarczykMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2025triple
Online Housing MarketJulien LescaFair Allocation · Chores, Online & DynamicIJCAI 2025triple
Approximately EFX and fPO Allocations for Bivalued ChoresZehan Lin, Xiaowei Wu, Shengwei ZhouFair Allocation · Chores, Online & DynamicIJCAI 2025triple
Stackelberg vs. Nash in the Lottery Colonel Blotto Game not comsocYan Liu, Bonan Ni, Weiran Shen, Zihe Wang, Jie ZhangunclassifiedIJCAI 2025triple
Viral Marketing and Convergence Properties in Generalised Voter Model not comsocAbhiram Manohara, Ahad N. ZehmakanunclassifiedIJCAI 2025triple
Asymptotic Analysis of Weighted Fair DivisionPasin Manurangsi, Warut Suksompong, Tomohiko YokoyamaFair Allocation · Fair Division TheoryIJCAI 2025triple
Asymptotic Fair Division: Chores Are Easier Than GoodsPasin Manurangsi, Warut SuksompongFair Allocation · Chores, Online & DynamicIJCAI 2025triple
Variety-Seeking Jump Games on Graphs not comsocLata Narayanan, Jaroslav Opatrny, Shanmukha Tummala, Alexandros A. VoudourisunclassifiedIJCAI 2025triple
The Core of Approval-Based Committee Elections with Few SeatsDominik PetersMultiwinner & Participatory Budgeting · Multiwinner VotingIJCAI 2025triple
Optimal Capacity Modification for Stable Matchings with TiesKeshav Ranjan, Meghana Nasre, Prajakta NimbhorkarCoalition Formation · Matching under PreferencesIJCAI 2025triple
Improved Approximation Ratio for Strategyproof Facility Location on a CycleKrzysztof Rogowski, Marcin DziubińskiVoting · ManipulationIJCAI 2025triple
Discrete Budget Aggregation: Truthfulness and ProportionalityUlrike Schmidt-Kraepelin, Warut Suksompong, Markus UtkeMultiwinner & Participatory Budgeting · Participatory BudgetingIJCAI 2025triple
Finding Possible Winners in Spatial Voting with Incomplete InformationHadas Shachnai, Rotem Shavitt, Andreas WieseVoting · Incomplete InformationIJCAI 2025triple
Improved MMS Approximations for Few Agent TypesParnian Shahkar, Jugal GargFair Allocation · Envy & ProportionalityIJCAI 2025triple
Probabilistic Analysis of Stable Matching in Large Markets with SiblingsZhaohong Sun, Tomohiko Yokoyama, Makoto YokooCoalition Formation · Matching under PreferencesIJCAI 2025triple
A Little Subsidy Ensures MMS Allocation for Three AgentsXiaowei Wu, Quan Xue, Shengwei ZhouFair Allocation · Shares & GuaranteesIJCAI 2025triple
Revisiting Proportional Allocation with Subsidy: Simplification and ImprovementsXiaowei Wu, Quan Xue, Shengwei ZhouFair Allocation · Envy & ProportionalityIJCAI 2025triple
First-Order Coalition Logic not comsocDavide Catta, Rustam Galimullin, Aniello MuranounclassifiedIJCAI 2025triple
On Middle Grounds for Preference StatementsAnne-Marie George, Ana OzakiVoting · Combinatorial DomainsIJCAI 2025triple
Responsibility Gap in Collective Decision MakingPavel Naumov, Jia TaoVoting · Voting Theory & AxiomsIJCAI 2025triple
Minimizing Polarization and Disagreement in the Friedkin–Johnsen Model with Unknown Innate OpinionsFederico Cinus, Atsushi Miyauchi, Yuko Kuroki, Francesco BonchiFrontier · Opinion Diffusion & NetworksIJCAI 2025triple
Recommender Systems for Democracy: Toward Adversarial Robustness in Voting Advice ApplicationsFrédéric Berdoz, Dustin Brunner, Yann Vonlanthen, Roger WattenhoferVoting · Bribery & ControlIJCAI 2025triple
Control in Computational Social ChoiceJiehua Chen, Joanna Kaczmarek, Paul Nüsken, Jörg Rothe, Ildikó Schlotter, Tessa SeegerVoting · Bribery & ControlIJCAI 2025triple
A Survey on Bandit Learning in Matching Markets not comsocShuai Li, Zilong Wang, Fang KongunclassifiedIJCAI 2025triple
Shapley Value Computation in Ontology-Mediated Query Answering (Extended Abstract) not comsocMeghyn Bienvenu, Diego Figueira, Pierre LafourcadeunclassifiedIJCAI 2025triple
Incentives for Early Arrival in Cooperative Games (Extended Abstract)Yaoxin Ge, Yao Zhang, Dengji Zhao, Zhihao Gavin Tang, Hu Fu, Pinyan LuCoalition Formation · Weighted Voting GamesIJCAI 2025triple
MatchXplain: Analyzing Preferences, Explaining Outcomes, and Simplifying DecisionsHadi Hosseini, Yubo Jing, Ronak SinghCoalition Formation · Matching under PreferencesIJCAI 2025triple
Best of Both Worlds Fairness under Entitlements -- probablistic allocation of indivisible items -- already probabilisticFair Allocation · Envy & ProportionalityAAMAS 2023triple proof
Probabilistic Rationing with Categorized Priorities: Processing Reserves Fairly and EfficientlyCoalition Formation · Matching under PreferencesAAMAS 2023triple
Semi-Popular Matchings and Copeland WinnersCoalition Formation · Matching under PreferencesAAMAS 2023triple
Host Community Respecting Refugee HousingCoalition Formation · Matching under PreferencesAAMAS 2023triple proof
Online Matching with Delays and Stochastic Arrival TimesCoalition Formation · Matching under PreferencesAAMAS 2023triple
Stable Marriage in Euclidean SpaceCoalition Formation · Matching under PreferencesAAMAS 2023triple proof
Experimental paper on stable roommatesCoalition Formation · Matching under PreferencesAAMAS 2023triple proof
Revisiting the Distortion of Distributed VotingVoting · DistortionAAMAS 2023triple
Bounded Approval Ballots: Balancing Expressiveness and Simplicity for Multiwinner ElectionsMultiwinner & Participatory Budgeting · Multiwinner VotingAAMAS 2023triple
On the Distortion of Single Winner Elections with Aligned CandidatesVoting · DistortionAAMAS 2023triple
SAT-based Judgment AggregationFrontier · Judgment AggregationAAMAS 2023triple proof
Characterizations of Sequential Valuation RulesMultiwinner & Participatory Budgeting · Multiwinner VotingAAMAS 2023triple
Collecting, Classifying, Analyzing, and Using Real-World Ranking DataFrontier · Computer-Aided Methods & DataAAMAS 2023triple
Margin of Victory for Weighted Tournament SolutionsVoting · Weighted TournamentsAAMAS 2023triple proof
Bribery Can Get Harder in Structured Multiwinner Approval ElectionVoting · Bribery & ControlAAMAS 2023triple proof
Strategyproof Social Decision Schemes on Super Condorcet DomainsVoting · Probabilistic Social ChoiceAAMAS 2023triple
Separating and Collapsing Electoral Control TypesVoting · Bribery & ControlAAMAS 2023triple
The Distortion of Approval Voting with RunoffVoting · DistortionAAMAS 2023triple proof
On the Complexity of the Two-Stage Majority RuleVoting · Bribery & ControlAAMAS 2023triple proof
Fairness in Participatory Budgeting via Equality of ResourcesMultiwinner & Participatory Budgeting · Participatory BudgetingAAMAS 2023triple proof
Free-Riding in Multi-Issue DecisionsVoting · Combinatorial DomainsAAMAS 2023triple proof
k-Prize Weighted Voting GameCoalition Formation · Weighted Voting GamesAAMAS 2023triple proof
Computing the Best Policy that Survives a VoteVoting · Combinatorial DomainsAAMAS 2023triple proof
Voting by AxiomsFrontier · Computer-Aided Methods & DataAAMAS 2023↘*triple proof
Voting with Limited Energy: A Study of Plurality and BordaVoting · Incomplete InformationAAMAS 2023triple

Δ is the settled direction of the complexity change, discrete → continuous: ↘ drops (the prize), → preserved, ↗ rises, ↘* encoding-dependent. Blank = mirror not yet settled by the prover round.

THE BRIBERY TOWN — rules × attacks

608 cells · 127 carry a classical status (81 NP-c / 77 P / 22 NP-h / 4 Θ₂ᵖ, over 196 variant entries from ~30 source-checked papers) · 9 explicitly open · continuous mirror: 1 machine-proved & adversarially reviewed + 35 entries proved in the ChoCo paper (17 drops ↘) + 16 open targets incl. INV-PERM-MAX · 133 cells n/a · 57% of the town uncharted

NP-hard (Θ = Θ₂ᵖ) P ± variant-dependent ?explicitly open ∅ immune disputed uncharted n/a — attack undefined for this ballot format
CONTINUOUS MIRROR: machine-proved + adversarially reviewed proved in the ChoCo paper ?named open target complexity drops preserved rises
highlight: everything drops ↘ preserved → open mirror targets machine-proved any continuous result NP-hard discrete P discrete uncharted
attack \ rulePludApBorScoAppSPAFalBucCopC1MxmKemSlaCndDodYouBalNanIRVvetoPluROCoorpSNTVkBorCCrAVmSAVGAVRAVPAVreferenda
Winner determinationΘΘΘΘ
Swap BriberyP±NPNN?NN?P??NP
Shift BriberyP±?PPN±??NNNNNN
$Bribery±N±±±±?NNP±P?P?±
MicrobriberyP
Support Bribery±±±?
Mixed BriberyN
Extension Bribery?NPPN±
ManipulationP±NPP±±NNN±NN
CCAV (priced)P±NN±
CCDV (priced)P±NN±??
Possible WinnerPNNNNNNNPNN
Combinatorial Shift BriberyNN
Committee Shift BriberyPNN±N±±N
Margin of Victory / destructivePPPNNNPN
Multimode / candidate control±±N±P!
Frugal Bribery±±NNNNNN
PersuasionP±N±P
Lobbying (referenda)±

Primary color = the CLASSICAL discrete status (P vs NP-hard), assembled from ~30 source-checked papers; every colored cell clicks through to its variant-by-variant statuses with citations — the same cell is routinely P and NP-hard under different cost models, which is why the legend needs ±. Arrows are the continuous mirror: a cell can carry several at once (k-Approval × Swap drops for additively separable costs and stays hard for general costs). Most of the town is still uncharted — and this is one paper's vocabulary plus one literature sweep, before multiwinner or weighted voters.

THE FOUNDATIONS — what it takes to verify one pin

The top trust tier of this atlas is formal (Lean) verification, and the experiment was to formalize the bribery paper behind the town. The finding is that “formalize the paper” is the wrong unit of work: what actually has to be built is the theory the paper — and half of computational social choice — stands on. Exact rational LP duality and the ellipsoid method (a large chunk of Grötschel–Lovász–Schrijver), a real machine model in which “polynomial time” is a theorem about Turing machines rather than a slogan, and the parameterized-complexity basics (what an FPT reduction is, hardness of Clique) that the Handbook's hardness results silently assume. None of this existed in mathlib. The chart below is that theory, partially built — and it is a reusable foundation for every future pin, not a per-paper cost.

External results enter as explicitly stated assumptions (Lean interfaces — never axioms), so a paper can be verified modulo named citations: “†” below marks these. That packaging is what makes paper-scale verification feasible at all, and it is also the sharpest danger: mis-formalize an assumption and everything above it silently rests on a falsehood. This is not hypothetical — the machine audit of this very development flagged the GLS vertex-encoding interface as likely false as stated (a \(10E^2\) bit bound where Cramer-rule arithmetic forces roughly \(E^3\)), and found a legacy layer in which P = NP was a structure field, so theorems “concluding” it concluded nothing. Both were caught by auditing the assumption surface — the discipline this page exists to display.

596 Lean files · 111,968 lines · 0 axiom / 0 sorry / 0 native_decide · 42% of the mathematical development is assumption-free end to end · 19 external interfaces tracked · 1,118 automated #print axioms checks · snapshot 2026-08-12

proved outright (assumption-free cone) fully proved, conditional on † interfaces † assumed external result vacuous legacy layer not formalized yet mathlib click any block for its contents, assumptions and risks
Mathlib 2,322,568 lines Election model 2,382 lines LP duality 4,737 lines Ellipsoid / GLS opt↔sep 26,409 lines Conic sparsification 906 lines Machine model (TM2) 2,912 lines Machine library †×71 994 lines Khachiyan LP † 141 lines GLS vertex bound † 164 lines GLS primal recovery † 222 lines Configuration LP 3,964 lines Infinite-cost removal 1,986 lines Region LP (poly-lp) 7,347 lines Attack compilations 13,876 lines $Bribery pipeline 7,603 lines Additive k-Approval 15,828 lines Budget→dual bridge 6,270 lines Hardness reductions 4,471 lines Legacy abstract layer 1,561 lines Non-examples 643 lines W[1] / FPT classes not formalized yet XP algorithm (k-App) not formalized yet Dorn–Schlotter reduction not formalized yet Margin→Borda padding not formalized yet Copeland tournament tail not formalized yet

Metrics regenerate from the repository via tools/lean_audit.py (tripwire greps, import-cone analysis, watchlist diffs) as the formalization progresses; the module structure and assumption audit are from the machine inventory of the development. 223 regression files pin proved statements to their intended shape, and an axiom-audit file re-checks every central declaration on each build.

What this is

Most of computational social choice studies finite societies: a list of voters, an integer program, an NP-hardness proof. Nearly every such result has an unexamined continuous mirror: replace the population by a distribution of voter types with masses, keep the computational question. Sometimes the mirror is easier — the integer program relaxes to a linear program and NP-hardness drops to P. Nobody has charted where. This atlas is the chart, and it is being drawn by an automated pipeline.

How a pin gets its colour

Each paper of the pilot corpus is read by an adversarial triple (proponent, opponent, judge — GPT-5.6 class models). A pin is green if the judge finds a named result whose continuous mirror survives the opponent's best case against it; red otherwise. For green papers, a packaging stage turns the mirror into a self-contained proof task (target chosen by fixed rules from what the discrete result asserts), a prover attempts it, and a second, independent model is prompted to BREAK the proof — an adversarial review, not a rubber stamp. A gold ring marks a new result: the prover settled the mirror and the adversarial review failed to break the proof. No human has audited these — that is the next tier, and saying so plainly is the point of the tier system.

The pipeline, stage by stage

Every element here is the output of a fixed chain of tools, each stage writing machine-readable records that the next stage — and this site — is built from:

  1. Harvest. Venue indexes from DBLP's CC0 bulk dump plus an OpenAlex citation snowball seeded by the Handbook of Computational Social Choice; every row records which source found it.
  2. Screen. A model sorts each candidate into comsoc / borderline / no from title and abstract; each verdict records the model that made it and its input basis (title-only verdicts are provisional by construction).
  3. Adversarial triple. Proponent, opponent and judge read the full text in sequence; the judge must name a specific theorem and quote it verbatim, and the quote is machine-checked against the source text — a pin with no checkable anchor does not turn green.
  4. Package → prove → review. For green papers, a packaging stage writes the continuous mirror up as a self-contained proof task, a prover (GPT-5.6 class, maximum reasoning effort) attempts it, and an independent model is prompted to break the proof. Only settled-and-survived earns a gold ring.
  5. Build. atlas_build.py renders this site from those records and nothing else. No pin, verdict, quote or proof on this site is hand-typed.

Trust tiers

machine-claimed (prover only) < adversarially reviewed (an independent model tries to break the proof and fails) < human-checked < formalized (Lean — see The Foundations). Every gold element on this site links to its full provenance — the exact task, the proof, the adversarial review. Nothing here is hand-typed except the map background and the curated grid data, which was itself extracted from the literature by an agent and struck by a human.

Honesty note

This is a growing chart, not a finished one. It currently covers 527 papers across 12 venue-years (AAAI 2022, AAAI 2023, AAAI 2024, AAAI 2025, AAMAS 2022, AAMAS 2023, AAMAS 2024, AAMAS 2025, IJCAI 2022, IJCAI 2023, IJCAI 2024, IJCAI 2025). The proofs are adversarially reviewed by machines, not checked by humans — and “verified” is a word this atlas reserves for the Lean tier. The town grid is one paper's vocabulary. The point of the atlas is not that it is finished — it is that every element you can click was produced, end to end, by a pipeline that can now be pointed at the next conference, the next cell, and the next area.

Openness & releases

Openness about the pipeline is part of the point, and it arrives in two steps. Already now, every published build of this site is stamped — see the footer — with the exact commit of the pipeline repository that produced it, and every gold element links its full provenance: the task as posed, the proof as returned, the adversarial review as it happened. The pipeline itself (code, prompts, harness) is still changing weekly and will be released in full once it settles; because the build stamps are public first, that release can be checked retroactively against every build that ever appeared here. One thing is never published: paper full texts — provenance pages quote only the specific named statements under discussion.