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Signal Processing over Product DAGs: Causal Shifts and Filters

arXiv:2609.40275v1 Announce Type: new Abstract: We develop a signal processing framework for signals indexed by the product of two directed acyclic graphs (DAGs) and described by a linear structural equation model (SEM). Such a setup arises whenever (linear) causal relations act along two domains,…

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  1. 2026-10-01 04:00 · arXiv stat.ML
    Signal Processing over Product DAGs: Causal Shifts and Filters

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