Model-independent constraints on generalized FLRW consistency relations with bootstrap-based symbolic regression

arXiv:2604.05822 · astro-ph.CO · Submitted 2026-04-07 · Read on arXiv

astro-ph.CO

Submitted: 2026-04-07

Updated: 2026-07-01

Code: https://github.com/CP3-Origins/cp3-bench

Terminology

• Symbolic Regression — 62× in this paper · explained in 5 episodes
• Consistency — 29× in this paper · explained in 3 episodes
• Robustness — 8× in this paper · explained in 5 episodes
• Accuracy — 7× in this paper · explained in 1 episode
• Calibration — 4× in this paper · explained in 7 episodes
• Hubble Tension — 3× in this paper · explained in 9 episodes
• Clustering — 2× in this paper · explained in 2 episodes
• Model-Agnostic — 2× in this paper · explained in 2 episodes
• Benchmarking — 1× in this paper · explained in 4 episodes
• For the Clarkson-Basset-Lu — 1× in this paper
• Loss Function — 1× in this paper · explained in 2 episodes
• Modularity — 1× in this paper · explained in 9 episodes
• Self-consistency — 1× in this paper · explained in 2 episodes
• Trace — 1× in this paper · explained in 2 episodes
• Unified Framework — 1× in this paper · explained in 5 episodes

Sources

• In the Realm of the Hubble tension $-$ a Review of Solutions
• An Introduction to Gaussian Process Models
• Gaussian Processes: A Quick Introduction
• Kernel dependence of the Gaussian Process reconstruction of late Universe expansion history
• Revisiting Gaussian Process Reconstruction for Cosmological Inference: The Generalised GP (Gen GP) Framework
• Elucidating cosmological model dependence with $H_0$
• Introduction to Symbolic Regression in the Physical Sciences
• A general test of the Copernican Principle
• Multipole decomposition of the general luminosity distance 'Hubble law' -- a new framework for observational cosmology
• Differential age observations and their constraining power in cosmology
• Quantifying the accuracy of the Alcock-Paczynski scaling of baryon acoustic oscillation measurements
• Baryon acoustic oscillation methods for generic curvature: Application to the SDSS-III Baryon Oscillation Spectroscopic Survey
• cp3-bench: A tool for benchmarking symbolic regression algorithms tested with cosmology
• Constraining dark matter halo profiles with symbolic regression
• Machine learning cosmic backreaction and its effects on observations
• Cosmic backreaction and the mean redshift drift from symbolic regression
• (Exhaustive) Symbolic Regression and model selection by minimum description length
• The Pantheon+ Analysis: The Full Dataset and Light-Curve Release
• DESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations
• Model-agnostic assessment of dark energy after DESI DR1 BAO

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