Augmented correlation functions extend the two-point correlation function with latent dimensions derived from the galaxy field to isolate additional clustering information in spectroscopic surveys.
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The paper develops R^wst, a bias-robust wavelet scattering statistic that delivers unbiased constraints on cosmological parameters and improves degeneracy breaking versus the two-point correlation function via simulation-based inference.
Calibrated NQE enables unbiased field-level cosmological inference from 2D density maps by training mostly on approximate PM simulations and calibrating with ~100 PP simulations.
citing papers explorer
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Augmented Correlation Functions for Spectroscopic Galaxy Surveys
Augmented correlation functions extend the two-point correlation function with latent dimensions derived from the galaxy field to isolate additional clustering information in spectroscopic surveys.
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Cosmological Constraints from Bias-Robust Wavelet Scattering Statistics for Stage-IV Galaxy Surveys
The paper develops R^wst, a bias-robust wavelet scattering statistic that delivers unbiased constraints on cosmological parameters and improves degeneracy breaking versus the two-point correlation function via simulation-based inference.
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Cosmological Analysis with Calibrated Neural Quantile Estimation and Approximate Simulators
Calibrated NQE enables unbiased field-level cosmological inference from 2D density maps by training mostly on approximate PM simulations and calibrating with ~100 PP simulations.