Nimrod Talmon
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View article: Participatory budgeting with cumulative votes
Participatory budgeting with cumulative votes Open
In participatory budgeting a group of decision makers is given a set of projects—each with a cost—and has to decide which projects should be funded within the constraints of an available budget. Each decision maker, in some form, expresses…
View article: A Social Choice Analysis of Optimism’s Retroactive Project Funding
A Social Choice Analysis of Optimism’s Retroactive Project Funding Open
The Optimism Retroactive Project Funding (RetroPGF) is a key initiative within the blockchain ecosystem that retroactively rewards projects deemed valuable to the Ethereum and Optimism communities. Managed by the Optimism Collective, a dec…
View article: Framework of Voting Prediction of Parliament Members
Framework of Voting Prediction of Parliament Members Open
Tracking lawmakers’ voting behavior is vital for government transparency. Although many parliaments publish voting records online, these datasets are often complex and difficult to analyze. This research presents the Voting Prediction Fram…
View article: Participatory budgeting with project groups
Participatory budgeting with project groups Open
We study a generalization of the standard approval-based model of participatory budgeting (PB), in which voters are providing approval ballots over a set of predefined projects and -- in addition to a global budget limit, there are several…
View article: Framework of Voting Prediction of Parliament Members
Framework of Voting Prediction of Parliament Members Open
Keeping track of how lawmakers vote is essential for government transparency. While many parliamentary voting records are available online, they are often difficult to interpret, making it challenging to understand legislative behavior acr…
View article: Grassroots Federation: Fair Governance of Large-Scale, Decentralized, Sovereign Digital Communities
Grassroots Federation: Fair Governance of Large-Scale, Decentralized, Sovereign Digital Communities Open
Grassroots Federation aims to address the egalitarian formation and the fair democratic governance of large-scale, decentralized, sovereign digital communities, the size of the EU, the US, existing social networks, and even humanity at lar…
View article: Federated Assemblies
Federated Assemblies Open
A *citizens' assembly* is a group of people who are randomly selected to represent a larger population in a deliberation. While this approach has successfully strengthened democracy, it has certain limitations that suggest the need for ass…
View article: Drawing a map of elections
Drawing a map of elections Open
International audience
View article: Control by Adding or Deleting Edges in Graph-Restricted Weighted Voting Games
Control by Adding or Deleting Edges in Graph-Restricted Weighted Voting Games Open
Graph-restricted weighted voting games generalize weighted voting games, a well-studied class of succinct simple games, by embedding them into a communication structure: a graph whose vertices are the players some of which are connected by…
View article: FCKT: Fine-Grained Cross-Task Knowledge Transfer with Semantic Contrastive Learning for Targeted Sentiment Analysis
FCKT: Fine-Grained Cross-Task Knowledge Transfer with Semantic Contrastive Learning for Targeted Sentiment Analysis Open
In this paper, we address the task of targeted sentiment analysis , which involves two sub-tasks, i.e., identifying specific aspects from reviews and determining their corresponding senti-ments. Aspect extraction forms the foundation for s…
View article: Verified Certificates via SAT and Computer Algebra Systems for the Ramsey R(3,8) and R(3,9) Problems
Verified Certificates via SAT and Computer Algebra Systems for the Ramsey R(3,8) and R(3,9) Problems Open
The Ramsey problem R(3,k) seeks to determine the smallest value of n such that any red/blue edge coloring of the complete graph on n vertices must either contain a blue triangle (3-clique) or a red clique of size k. Despite its significanc…
View article: Federated Assemblies
Federated Assemblies Open
A citizens' assembly is a group of people who are randomly selected to represent a larger population in a deliberation. While this approach has successfully strengthened democracy, it has certain limitations that suggest the need for assem…
View article: Optimizing Viscous Democracy
Optimizing Viscous Democracy Open
Viscous democracy is a generalization of liquid democracy, a social choice framework in which voters may transitively delegate their votes. In viscous democracy, a "viscosity" factor decreases the weight of a delegation the further it trav…
View article: Controlling Delegations in Liquid Democracy
Controlling Delegations in Liquid Democracy Open
In liquid democracy, agents can either vote directly or delegate their vote to a different agent of their choice. This results in a power structure in which certain agents possess more voting weight than others. As a result, it opens up ce…
View article: Enabling the Digital Democratic Revival: A Research Program for Digital Democracy
Enabling the Digital Democratic Revival: A Research Program for Digital Democracy Open
This white paper outlines a long-term scientific vision for the development of digital-democracy technology. We contend that if digital democracy is to meet the ambition of enabling a participatory renewal in our societies, then a comprehe…
View article: Efficiently Computing Smallest Agreeable Sets
Efficiently Computing Smallest Agreeable Sets Open
We study the computational complexity of identifying a small agreeable subset of items. A subset of items is agreeable if every agent does not prefer its complement set. We study settings in which agents either can assign arbitrary utiliti…
View article: Complexity of Control by Adding or Deleting Edges in Graph-Restricted Weighted Voting Games
Complexity of Control by Adding or Deleting Edges in Graph-Restricted Weighted Voting Games Open
Graph-restricted weighted voting games generalize weighted voting games, a well-studied class of succinct simple games, by embedding them into a communication structure: a graph whose vertices are the players some of which are connected by…
View article: Efficient Social Choice via NLP and Sampling
Efficient Social Choice via NLP and Sampling Open
Attention-Aware Social Choice tackles the fundamental conflict faced by some agent communities between their desire to include all members in the decision making processes and the limited time and attention that are at the disposal of the …
View article: Participatory Budgeting: Data, Tools and Analysis
Participatory Budgeting: Data, Tools and Analysis Open
We provide a library of participatory budgeting data (Pabulib) and open source tools (Pabutools and Pabustats) for analysing this data. We analyse how the results of participatory budgeting elections would change if a different selection r…
View article: Participatory Budgeting: Data, Tools, and Analysis
Participatory Budgeting: Data, Tools, and Analysis Open
We provide a library of participatory budgeting data (Pabulib) and open source tools (Pabutools and Pabustats) for analysing this data. We analyse how the results of participatory budgeting elections would change if a different selection r…
View article: Fine-Grained Liquid Democracy for Cumulative Ballots
Fine-Grained Liquid Democracy for Cumulative Ballots Open
We investigate efficient ways for the incorporation of liquid democracy into election settings in which voters submit cumulative ballots, i.e., when each voter is assigned a virtual coin that she can then distribute as she wishes among the…
View article: Better Collective Decisions via Uncertainty Reduction
Better Collective Decisions via Uncertainty Reduction Open
We consider an agent community wishing to decide on several binary issues by means of issue-by-issue majority voting. For each issue and each agent, one of the two options is better than the other. However, some of the agents may be confus…
View article: How to Sample Approval Elections?
How to Sample Approval Elections? Open
We study the multifaceted question of how to sample approval elections in a meaningful way. Our analysis aims to discern the properties of various statistical cultures (both established and new ones). Based on the map-of-elections framewor…
View article: How to Sample Approval Elections?
How to Sample Approval Elections? Open
We extend the map-of-elections framework to the case of approval elections. While doing so, we study a number of statistical cultures, including some new ones, and we analyze their properties. We find that approval elections can be underst…
View article: Better Collective Decisions via Uncertainty Reduction
Better Collective Decisions via Uncertainty Reduction Open
We consider an agent community wishing to decide on several binary issues by means of issue-by-issue majority voting. For each issue and each agent, one of the two options is better than the other. However, some of the agents may be confus…