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astro-ph.IM2026
Foreground Subtraction with a Tensor-Based Oriented Singular Value Decomposition Method for HI Experiments
Shifan Zuo, Xuelei Chen, Yi Mao
We introduce a native tensor-based framework for foreground mitigation in 21\,cm intensity mapping (IM), utilizing the Oriented Singular Value Decomposition (O-SVD) algorithm. Whil…
astro-ph.IM2025
Likelihood-free Model Selection in Cosmic Reionization with Three-dimensional Tomographic 21 cm Lightcone Images
T. Binnie, Xiaosheng Zhao, J. R. Pritchard +1
We explore likelihood-free (aka simulation-based) Bayesian model selection to quantify model comparison analyses of reionisation scenarios. We iteratively train the 3D Convolutiona…
astro-ph.IM2023★ 1 cited
Simulation-based Inference of Reionization Parameters from 3D Tomographic 21 cm Light-cone Images -- II: Application of Solid Harmonic Wavelet Scattering Transform
Xiaosheng Zhao, Yi Mao, Shifan Zuo +1
The information regarding how the intergalactic medium is reionized by astrophysical sources is contained in the tomographic three-dimensional 21 cm images from the epoch of reioni…