notesum.ai

Published at October 21

Domain-Adaptive Neural Posterior Estimation for Strong Gravitational Lens Analysis

cs.AI

cs.CL

cs.LG

Released Date: October 21, 2024

Authors: Paxson Swierc¹, Marcos Tamargo-Arizmendi², Aleksandra Ćiprijanović, Brian D. Nord³

Aff.: ¹Department of Astronomy and Astrophysics, University of Chicago; ²Fermi National Accelerator Laboratory; ³Department of Astronomy and Astrophysics, University of Chicago, Fermi National Accelerator Laboratory, Kavli Institute for Cosmological Physics, University of Chicago

Arxiv: https://arxiv.org/abs/2410.16347v1

	(a) Prior Distributions		(b) Residual: Target		(c) Residual: Source
Params	Training	Valid/Test	NPE-only	NPE-UDA	NPE-only	NPE-UDA
$\theta_{\mathrm{E}}$ (^′′)	$\mathcal{U}(0.9,3.2)$	$\mathcal{U}(1.0,3.0)$	$-0.05^{+0.18}_{-0.33}$	$-0.006^{+0.045}_{-0.039}$	${\color[rgb]{1,1,1}\definecolor[named]{pgfstrokecolor}{rgb}{1,1,1}% \pgfsys@color@cmyk@stroke{0}{0}{0}{0}\pgfsys@color@cmyk@fill{0}{0}{0}{0}-}0.00% 2\pm 0.017$	${\color[rgb]{1,1,1}\definecolor[named]{pgfstrokecolor}{rgb}{1,1,1}% \pgfsys@color@cmyk@stroke{0}{0}{0}{0}\pgfsys@color@cmyk@fill{0}{0}{0}{0}-}0.00% 0\pm 0.018$
$x_{\mathrm{}}$ (^′′)	$\mathcal{U}(-1.3,1.3)$	$\mathcal{U}(-1.0,1.0)$	$-0.06\pm 0.19$	${\color[rgb]{1,1,1}\definecolor[named]{pgfstrokecolor}{rgb}{1,1,1}% \pgfsys@color@cmyk@stroke{0}{0}{0}{0}\pgfsys@color@cmyk@fill{0}{0}{0}{0}-}0.00% 7\pm 0.076$	${\color[rgb]{1,1,1}\definecolor[named]{pgfstrokecolor}{rgb}{1,1,1}% \pgfsys@color@cmyk@stroke{0}{0}{0}{0}\pgfsys@color@cmyk@fill{0}{0}{0}{0}-}0.00% 4\pm 0.025$	$-0.002\pm 0.030$
$y_{\mathrm{}}$ (^′′)	$\mathcal{U}(-1.3,1.3)$	$\mathcal{U}(-1.0,1.0)$	${\color[rgb]{1,1,1}\definecolor[named]{pgfstrokecolor}{rgb}{1,1,1}% \pgfsys@color@cmyk@stroke{0}{0}{0}{0}\pgfsys@color@cmyk@fill{0}{0}{0}{0}-}0.07% \pm 0.20$	${\color[rgb]{1,1,1}\definecolor[named]{pgfstrokecolor}{rgb}{1,1,1}% \pgfsys@color@cmyk@stroke{0}{0}{0}{0}\pgfsys@color@cmyk@fill{0}{0}{0}{0}-}0.00% 1\pm 0.079$	$-0.001^{+0.021}_{-0.024}$	$-0.001\pm 0.030$
$e_{\mathrm{l},1}$	$\mathcal{U}(-0.3,0.3)$	$\mathcal{U}(-0.2,0.2)$	$-0.28\pm 0.75$	$0.007^{+0.062}_{-0.075}$	$-0.001\pm 0.030$	$0.001^{+0.019}_{-0.016}$
$e_{\mathrm{l},2}$	$\mathcal{U}(-0.3,0.3)$	$\mathcal{U}(-0.2,0.2)$	${\color[rgb]{1,1,1}\definecolor[named]{pgfstrokecolor}{rgb}{1,1,1}% \pgfsys@color@cmyk@stroke{0}{0}{0}{0}\pgfsys@color@cmyk@fill{0}{0}{0}{0}-}0.23% \pm 0.62$	$0.016^{+0.064}_{-0.084}$	$0.000^{+0.015}_{-0.016}$	$0.004^{+0.015}_{-0.020}$