A dual-head PINN couples H(z) and fσ8(z) through the GR growth ODE; with SH0ES or H0dN priors, fσ8 is systematically suppressed relative to ΛCDM while Om(z) is non-flat.
Neural network reconstruction of late-time cosmology and null tests
5 Pith papers cite this work, alongside 51 external citations. Polarity classification is still indexing.
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A multi-agent LLM system with a Planning & Control strategy performs an autonomous Union2.1 cosmology fit and beats single-LLM baselines on a 50-problem DS-1000 subset.
The authors use an ANN+BNN to calibrate the Amati relation of gamma-ray bursts from Pantheon+ supernovae and obtain cosmological constraints consistent with Gaussian process methods, finding weak 1σ evidence for evolving dark energy (wa ≠ 0).
ANN-calibrated gamma-ray burst distances, combined with Pantheon+ and DESI BAO, favor LambdaCDM over wCDM/CPL, with Omega_m ~ 0.33 and h ~ 0.73 for the DESI combination.
Observational constraints on a dark energy EoS parametrization in curved spacetime yield α ≈ 0.35 (0.56) and Ω_k0 that changes sign with ANN data reconstruction.
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