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Simultaneous Identification of Sparse Structures and Communities in Heterogeneous Graphical Models
May 17, 2024, 4:42 a.m. | Dapeng Shi, Tiandong Wang, Zhiliang Ying
cs.LG updates on arXiv.org arxiv.org
Abstract: Exploring and detecting community structures hold significant importance in genetics, social sciences, neuroscience, and finance. Especially in graphical models, community detection can encourage the exploration of sets of variables with group-like properties. In this paper, within the framework of Gaussian graphical models, we introduce a novel decomposition of the underlying graphical structure into a sparse part and low-rank diagonal blocks (non-overlapped communities). We illustrate the significance of this decomposition through two modeling perspectives and propose …
abstract arxiv communities community cs.lg detection exploration finance framework genetics identification importance neuroscience paper social social sciences stat.ml type variables
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