7 citations · 19 across the 8 of their papers we have counts for
10 papers
Measuring and Controlling Divisiveness in Rank Aggregation
Rachael Colley, Umberto Grandi, César Hidalgo +2
In rank aggregation, members of a population rank issues to decide which are collectively preferred. We focus instead on identifying divisive issues that express disagreements amon…
On the Complexity of Majority Illusion in Social Networks
Umberto Grandi, Grzegorz Lisowski, M. S. Ramanujan +1
Majority illusion occurs in a social network when the majority of the network nodes belong to a certain type but each node's neighbours mostly belong to a different type, therefore…
Social Choice Methods for Database Aggregation
Francesco Belardinelli, Umberto Grandi
Knowledge can be represented compactly in multiple ways, from a set of propositional formulas, to a Kripke model, to a database. In this paper we study the aggregation of informati…
Aggregation in Value-Based Argumentation Frameworks
Grzegorz Lisowski, Sylvie Doutre, Umberto Grandi
Value-based argumentation enhances a classical abstract argumentation graph - in which arguments are modelled as nodes connected by directed arrows called attacks - with labels on…
Agent-Mediated Social Choice
Umberto Grandi
Direct democracy is often proposed as a possible solution to the 21st-century problems of democracy. However, this suggestion clashes with the size and complexity of 21st-century s…
Database Aggregation
Francesco Belardinelli, Umberto Grandi
Knowledge can be represented compactly in a multitude ways, from a set of propositional formulas, to a Kripke model, to a database. In this paper we study the aggregation of inform…