Towards an Optimal Estimation of Cosmological Parameters with the Wavelet Scattering Transform

  title={Towards an Optimal Estimation of Cosmological Parameters with the Wavelet Scattering Transform},
  author={Georgios Valogiannis and Cora Dvorkin},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
Optimal extraction of the non-Gaussian information encoded in the Large-Scale Structure (LSS) of the universe lies at the forefront of modern precision cosmology. We propose achieving this task through the use of the Wavelet Scattering Transform (WST), which subjects an input field to a layer of non-linear transformations that are sensitive to non-Gaussianity in spatial density distributions through a generated set of WST coefficients. In order to assess its applicability in the context of LSS… 

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