no code implementations • 19 Mar 2024 • Catalina Vajiac, Arun Frey, Joachim Baumann, Abigail Smith, Kasun Amarasinghe, Alice Lai, Kit Rodolfa, Rayid Ghani
Rental assistance programs provide individuals with financial assistance to prevent housing instabilities caused by evictions and avert homelessness.
no code implementations • 19 Mar 2024 • Joachim Baumann, Celestine Mendler-Dünner
The success of the collective is measured by the increase in test-time recommendations of the targeted song.
no code implementations • 9 Oct 2023 • Teresa Scantamburlo, Joachim Baumann, Christoph Heitz
We clarify the distinction between the concepts of prediction and decision and show the different ways in which these two elements influence the final fairness properties of a prediction-based decision system.
1 code implementation • 10 May 2023 • Nicolò Pagan, Joachim Baumann, Ezzat Elokda, Giulia De Pasquale, Saverio Bolognani, Anikó Hannák
By qualitative analysis, and through a simulation example of recommender systems, we show which specific types of ML biases are affected by each type of feedback loop.
1 code implementation • 19 Oct 2022 • Joachim Baumann, Christoph Heitz
In this paper, we present a step-by-step procedure integrating three elements: (a) a framework for the moral assessment of what fairness means in a given context, based on the recently proposed general principle of "Fair equality of chances" (FEC) (b) a mapping of the assessment's results to established statistical group fairness criteria, and (c) a method for integrating the thus-defined fairness into optimal decision making.
1 code implementation • 6 Jun 2022 • Joachim Baumann, Corinna Hertweck, Michele Loi, Christoph Heitz
Group fairness metrics are an established way of assessing the fairness of prediction-based decision-making systems.
2 code implementations • 6 Jun 2022 • Corinna Hertweck, Joachim Baumann, Michele Loi, Eleonora Viganò, Christoph Heitz
This allows us to derive a fairness score that we then compare to the decision maker's utility.
1 code implementation • 5 Jun 2022 • Joachim Baumann, Anikó Hannák, Christoph Heitz
We show that group-specific threshold rules are optimal for PPV parity and FOR parity, similar to well-known results for other group fairness criteria.