activity
20162026
most citedThe Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment

681 citations · 1.5k across the 11 of their papers we have counts for

collaborators

11 papers

cs.LG2026

Making Cross-Continental Federated Learning Repeatable with FLIP: a Multi-Application Study

Rafael Garcia-Dias, Alexandre Triay Bagur, Chayanin Tangwiriyasakul +20

Federated learning (FL) in healthcare remains challenging, as the overhead of rebuilding governance guarantees for every collaboration stops most projects at the proof-of-concept s…

q-bio.QM2022★ 45 cited

Challenges in Using mHealth Data From Smartphones and Wearable Devices to Predict Depression Symptom Severity: Retrospective Analysis

Shaoxiong Sun, Amos A. Folarin, Yuezhou Zhang +28

A number of challenges exist for the analysis of mHealth data: maintaining participant engagement over extended time periods and therefore understanding what constitutes an accepta…

astro-ph.GA2019★ 92 cited

The Pristine survey X: a large population of low-metallicity stars permeates the Galactic disk

Federico Sestito, Nicolas F. Martin, Else Starkenburg +26

The orbits of the least chemically enriched stars open a window on the formation of our Galaxy when it was still in its infancy. The common picture is that these low-metallicity st…

astro-ph.GA2019★ 72 cited

The Pristine Survey -- VI. The first three years of medium-resolution follow-up spectroscopy of Pristine EMP star candidates

David S. Aguado, Kris Youakim, Jonay I. González Hernández +27

We present the results of a 3-year long, medium-resolution spectroscopic campaign aimed at identifying very metal-poor stars from candidates selected with the CaHK, metallicity-sen…

astro-ph.IM2019★ 18 cited

Machine learning in APOGEE: Identification of stellar populations through chemical abundances

Rafael Garcia-Dias, Carlos Allende Prieto, Jorge Sánchez Almeida +1

The vast volume of data generated by modern astronomical surveys offers test beds for the application of machine-learning. It is important to evaluate potential existing tools and…

astro-ph.SR2019★ 88 cited

Chemical Abundances of Main-Sequence, Turnoff, Subgiant and red giant Stars from APOGEE spectra II: Atomic Diffusion in M67 Stars

Diogo Souto, C. Allende Prieto, Katia Cunha +14

Chemical abundances for 15 elements (C, N, O, Na, Mg, Al, Si, K, Ca, Ti, V, Cr, Mn, Fe, and Ni) are presented for 83 stellar members of the 4 Gyr old solar-metallicity open cluster…

astro-ph.IM2018★ 356 cited

The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA Derived Quantities, Data Visualization Tools and Stellar Library

D. S. Aguado, Romina Ahumada, Andres Almeida +230

Twenty years have passed since first light for the Sloan Digital Sky Survey (SDSS). Here, we release data taken by the fourth phase of SDSS (SDSS-IV) across its first three years o…

astro-ph.IM2018★ 24 cited

Machine learning in APOGEE: Unsupervised spectral classification with -means

Rafael Garcia-Dias, Carlos Allende Prieto, Jorge Sánchez Almeida +1

The data volume generated by astronomical surveys is growing rapidly. Traditional analysis techniques in spectroscopy either demand intensive human interaction or are computational…

astro-ph.GA2017★ 681 cited

The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment

Bela Abolfathi, D. S. Aguado, Gabriela Aguilar +344

The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since July 2014. This paper describes the second data release from this phase, and the fourtee…

astro-ph.GA2017★ 46 cited

OCCASO II. Physical parameters and Fe abundances of Red Clump stars in 18 Open Clusters

L. Casamiquela, R. Carrera, S. Blanco-Cuaresma +13

Open Clusters have long been used to study the chemo-dynamical evolution of the Galactic disk. This requires an homogeneously analysed sample covering a wide range of ages and dist…

astro-ph.IM2016★ 5 cited

The Astropy Problem

Demitri Muna, Michael Alexander, Alice Allen +151

The Astropy Project (http://astropy.org) is, in its own words, "a community effort to develop a single core package for Astronomy in Python and foster interoperability between Pyth…