Feb. 13, 2024, 5:45 a.m. | Yixuan He Gesine Reinert David Wipf Mihai Cucuringu

cs.LG updates on arXiv.org arxiv.org

The angular synchronization problem aims to accurately estimate (up to a constant additive phase) a set of unknown angles $\theta_1, \dots, \theta_n\in[0, 2\pi)$ from $m$ noisy measurements of their offsets $\theta_i-\theta_j \;\mbox{mod} \; 2\pi.$ Applications include, for example, sensor network localization, phase retrieval, and distributed clock synchronization. An extension of the problem to the heterogeneous setting (dubbed $k$-synchronization) is to estimate $k$ groups of angles simultaneously, given noisy observations (with unknown group assignment) from each group. Existing methods for angular …

angular applications cs.lg distributed example extension graph graph neural networks localization math.oc network networks neural networks retrieval robust sensor set stat.ml synchronization via

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