202 citations · 797 across the 35 of their papers we have counts for
40 papers
Generalization from Low- to Moderate-Resolution Spectra with Neural Networks for Stellar Parameter Estimation: A Case Study with DESI
Xiaosheng Zhao, Yuan-Sen Ting, Rosemary F. G. Wyse +5
Cross-survey generalization is a critical challenge in stellar spectral analysis, particularly in cases such as transferring from low- to moderate-resolution surveys. We investigat…
Machine Learning Techniques to Distinguish Giant Stars from Dwarf Stars Using Only Photometry -- Pushing Redwards
Keyi Ding, Carrie Filion, Rosemary F. G. Wyse +6
We present our photometric method, which combines Subaru/HSC , g, and i band filters to distinguish giant stars in Local Group galaxies from Milky Way dwarf contamination. T…
Uncertainty of line-of-sight velocity measurement of faint stars from low and medium resolution optical spectra
László Dobos, Alexander S. Szalay, Tamás Budavári +3
Massively multiplexed spectrographs will soon gather large statistical samples of stellar spectra. The accurate estimation of uncertainties on derived parameters, such as line-of-s…
GPU-Accelerated Hierarchical Bayesian Inference with Application to Modeling Cosmic Populations: CUDAHM
János M. Szalai-Gindl, Thomas J. Loredo, Brandon C. Kelly +3
We describe a computational framework for hierarchical Bayesian inference with simple (typically single-plate) parametric graphical models that uses graphics processing units (GPUs…
The effect of emission lines on the performance of photometric redshift estimation algorithms
Géza Csörnyei, László Dobos, István Csabai
We investigate the effect of strong emission line galaxies on the performance of empirical photometric redshift estimation methods. In order to artificially control the contributio…
The anisotropy of the power spectrum in periodic cosmological simulations
Gábor Rácz, István Szapudi, István Csabai +1
The classical gravitational force on a torus is anisotropic and always lower than Newton's law. We demonstrate the effects of periodicity in dark matter only -body simul…