Specification, Application, and Operationalization of a Metamodel of Fairness

TL;DR

This paper introduces the AR fairness metamodel, a formal framework for representing, analyzing, and operationalizing fairness concepts in various scenarios, with an open-source tool for modeling and evaluation.

Contribution

It presents a novel formal metamodel for fairness, instantiated through examples, and integrates it with the Tiles framework for operationalization and comparison.

Findings

The AR fairness metamodel effectively formalizes fairness notions.

The Tiles framework enables modular and flexible fairness scenario modeling.

Open-source implementation supports practical fairness evaluation.

Abstract

This paper presents the AR fairness metamodel, aimed at formally representing, analyzing, and comparing fairness scenarios. The metamodel provides an abstract representation of fairness, enabling the formal definition of fairness notions. We instantiate the metamodel through several examples, with a particular focus on comparing the notions of equity and equality. We use the Tiles framework, which offers modular components that can be interconnected to represent various definitions of fairness. Its primary objective is to support the operationalization of AR-based fairness definitions in a range of scenarios, providing a robust method for defining, comparing, and evaluating fairness. Tiles has an open-source implementation for fairness modeling and evaluation.