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Enrico Grimaldi

2 papers indexed

arxivstat.MLcs.LGmath.COmath.GR2026-07-13

Learning the Graphical Nature of Symmetries

Rashid Barket, Enrico Grimaldi, Yacoub Hendi, Edward Hirst, Adam Onus, Harmeet Singh

Finite groups are rigid algebraic objects, whose Cayley graphs expose a rich network geometry through which group-theoretic structure can be measured, compared, and learned. In this paper, a dataset of $131{,}406$ Cayley graphs is constructed, covering all groups of order at most…

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arxiveess.SP2026-07-03

A Sheaf-Theoretic Framework for Distributed Multi-Site Channel Charting

Enrico Grimaldi, Leonardo Di Nino, Mario Edoardo Pandolfo, Gabriele D'Acunto, Sergio Barbarossa, Paolo Di Lorenzo

Channel charting (CC) enables data-driven user localization in wireless networks by embedding channel state information (CSI) into low-dimensional representations. In multi-cell scenarios, each base station independently learns a local chart via neural encoders, leading to misali…

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