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Minimizing and Maximizing the Shannon Entropy for Fixed Marginals

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  • The mutual information (MI) between two random variables is an important correlation measure in data analysis. The Shannon entropy of a joint probability distri- bution is the variable part under fixed marginals. We aim to minimize and maximize it to obtain the largest and smallest MI possible in this case, leading to a scaled MI ratio for better comparability. We present algorithmic approaches and optimal solutions for a set of problem instances based on data from molecular evolution. We show that this allows us to construct a sensible, systematic correction to raw MI values.

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Metadaten
Author:Paula FrankeORCiD, Kay Hamacher, Paul Manns
Document Type:In Proceedings
Parent Title (English):Operations Research Proceedings 2025
Year of first publication:2026
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