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math.NA2026
Edge-based Katz centralities for spatio-temporal multiplex networks
Kai Bergermann, Francesco Gravili, Valeria Simoncini +1
Katz centrality is a well-established measure to identify and rank the most important nodes in complex networks by means of a linear system solve. Recent works have developed notio…
math.NA2026
Deterministic sketching for Krylov subspace methods
Kai Bergermann
Randomized sketching is currently introduced into every area of numerical linear algebra. In Krylov subspace methods, it allows runtime savings at the cost of small accuracy reduct…