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Presented By: Department of Mathematics

Applied Interdisciplinary Mathematics (AIM) Seminar

Fair Structure Learning in Heterogeneous Graphical Models

Inference of community structure in probabilistic graphical models is not guaranteed to be fair when nodes have demographic attributes. Certain demographics may be over-represented in some detected communities and under-represented in others. This paper defines a novel $\ell_1$- regularized pseudo-likelihood approach for fair graphical model selection. In particular, we assume there is some community or clustering structure in the true underlying graph, and we seek to learn a sparse undirected graph and its communities from the data such that demographic groups are fairly represented within the communities. Our optimization approach uses the demographic parity definition of fairness, but the framework is easily extended to other definitions of fairness. We establish statistical consistency of the proposed method for both a Gaussian graphical model and an Ising model for, respectively, continuous and binary data, proving that our method can recover the graphs and their fair communities with high probability. Speaker(s): Davoud Ataee Tarzanagh (University of Michigan)

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