RT Book T1 Prediction-Based Decisions and Fairness: A Catalogue of Choices, Assumptions, and Definitions A1 Barocas, Solon A2 Potash, Eric A2 Mitchell, Shira A2 Lum, Kristian A2 D'Amour, Alexander LA English YR 2020 UL https://krimdok.uni-tuebingen.de/Record/1865807133 AB A recent flurry of research activity has attempted to quantitatively define "fairness" for decisions based on statistical and machine learning (ML) predictions. The rapid growth of this new field has led to wildly inconsistent terminology and notation, presenting a serious challenge for cataloguing and comparing definitions. This paper attempts to bring much-needed order. First, we explicate the various choices and assumptions made---often implicitly---to justify the use of prediction-based decisions. Next, we show how such choices and assumptions can raise concerns about fairness and we present a notationally consistent catalogue of fairness definitions from the ML literature. In doing so, we offer a concise reference for thinking through the choices, assumptions, and fairness considerations of prediction-based decision systems K1 Research