We study voting rules for participatory budgeting, where a group of voters collectively
decides which projects should be funded using a common budget. We allow the projects to …

When selecting a subset of candidates (a so-called committee) based on the preferences of
voters, proportional representation is often a major desideratum. When going beyond …

Participatory budgeting engages the public in the process of allocating public money to
different types of projects. PB designs differ in how voters are asked to express their …

In the late 19th century, Swedish mathematician Edvard Phragmén proposed a load-
balancing approach for selecting committees based on approval ballots. We consider three …

Algorithmic decision-making has become ubiquitous in our societal and economic lives.
With more and more decisions being delegated to algorithms, we have also encountered …

We introduce a novel definition for a small set R of k points being" representative" of a larger
set in a metric space. Given a set V (eg, documents or voters) to represent, and a set C of …

Developments in Multi-Agent Fair Allocation Page 1 The Thirty-Fourth AAAI Conference on
Artificial Intelligence (AAAI-20) Developments in Multi-Agent Fair Allocation Haris Aziz UNSW …

In the committee selection problem, we are given m candidates, and n voters. Candidates
can have different weights. A committee is a subset of candidates, and its weight is the sum …

Participatory budgeting (PB) is a democratic paradigm whereby voters decide on a set of
projects to fund with a limited budget. We consider PB in a setting where voters report …

We propose a new single-winner election method (" Schulze method") and prove that it
satisfies many academic criteria (eg monotonicity, reversal symmetry, resolvability …