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arXiv · 2504.16079

Testing models for angular power spectra: A distribution-free approach

Sara Algeri·Xiangyu Zhang·Erik Floden·Hongru Zhao·Galin L. Jones·Vuk Mandic·Jesse Miller
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Abstract

A novel goodness-of-fit strategy is introduced for testing models of angular power spectra with unknown parameters. Using this strategy, it is possible to assess the validity of such models without specifying the distribution of the angular power spectrum estimators. This holds under general conditions, ensuring the method's applicability in diverse applications. Moreover, the proposed solution overcomes the need for case-by-case simulations when testing different models, leading to notable computational advantages.

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Sara Algeri, Xiangyu Zhang, Erik Floden, Hongru Zhao, Galin L. Jones, Vuk Mandic, Jesse Miller. 2025-04-22. Testing models for angular power spectra: A distribution-free approach. https://doi.org/10.1103/74lc-b1gd

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