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Main Authors: Mages, Tobias, Rohner, Christian
Format: Preprint
Published: 2024
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Online Access:https://arxiv.org/abs/2407.04415
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author Mages, Tobias
Rohner, Christian
author_facet Mages, Tobias
Rohner, Christian
contents Inequality measures provide a valuable tool for the analysis, comparison, and optimization based on system models. This work studies the relation between attributes or features of an individual to understand how redundant, unique, and synergetic interactions between attributes construct inequality. For this purpose, we define a family of inequality measures (f-inequality) from f-divergences. Special cases of this family are, among others, the Pietra index and the Generalized Entropy index. We present a decomposition for any f-inequality with intuitive set-theoretic behavior that enables studying the dynamics between attributes. Moreover, we use the Atkinson index as an example to demonstrate how the decomposition can be transformed to measures beyond f-inequality. The presented decomposition provides practical insights for system analyses and complements subgroup decompositions. Additionally, the results present an interesting interpretation of Shapley values and demonstrate the close relation between decomposing measures of inequality and information.
format Preprint
id arxiv_https___arxiv_org_abs_2407_04415
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Quantifying redundancies and synergies with measures of inequality
Mages, Tobias
Rohner, Christian
Information Theory
Inequality measures provide a valuable tool for the analysis, comparison, and optimization based on system models. This work studies the relation between attributes or features of an individual to understand how redundant, unique, and synergetic interactions between attributes construct inequality. For this purpose, we define a family of inequality measures (f-inequality) from f-divergences. Special cases of this family are, among others, the Pietra index and the Generalized Entropy index. We present a decomposition for any f-inequality with intuitive set-theoretic behavior that enables studying the dynamics between attributes. Moreover, we use the Atkinson index as an example to demonstrate how the decomposition can be transformed to measures beyond f-inequality. The presented decomposition provides practical insights for system analyses and complements subgroup decompositions. Additionally, the results present an interesting interpretation of Shapley values and demonstrate the close relation between decomposing measures of inequality and information.
title Quantifying redundancies and synergies with measures of inequality
topic Information Theory
url https://arxiv.org/abs/2407.04415