Results 11 to 20 of about 812,727 (75)

The next decade of astroinformatics and astrostatistics [PDF]

open access: yes, 2019
Over the past century, major advances in astronomy and astrophysics have been largely driven by improvements in instrumentation and data collection. With the amassing of high quality data from new telescopes, and especially with the advent of deep and ...
Siemiginowska, Aneta   +51 more
core   +4 more sources

Galaxies in haystacks: astrostatistics and the Gaia mission

open access: yes, 2023
Talk given at the 2023 Joint Statistical Meetings "True North Strong and…Amazing at Astrostatistics!" invited paper session.
Pauline Barmby (498323)
core   +1 more source

Particle filtering with alpha-stable distributions [PDF]

open access: yes, 2005
In this paper we introduce a novel sequential Monte Carlo technique, which is based on the family of symmetric alpha- stable (SAS) distributions.
Canagarajah, N.   +4 more
core   +5 more sources

Realizing the potential of astrostatistics and astroinformatics [PDF]

open access: yes, 2019
This Astro2020 State of the Profession Consideration White Paper highlights the growth of astrostatistics and astroinformatics in astronomy, identifies key issues hampering the maturation of these new subfields, and makes recommendations for structural ...
Siemiginowska, Aneta   +14 more
core  

EXPONENTIAL GENERALIZED DISTRIBUTIONS [PDF]

open access: yes, 2010
In this paper we generalize the Fourier transform from the space of tempered distributions to a bigger space called exponential generalized distributions.
Gordon, M., Loura, L.
core   +1 more source

The next decade of astroinformatics and astrostatistics [PDF]

open access: yes
Over the past century, major advances in astronomy and astrophysics have been largely driven by improvements in instrumentation and data collection. With the amassing of high quality data from new telescopes, and especially with the advent of deep and ...
Siemiginowska, Aneta   +51 more
core   +2 more sources

Imputation and estimation under nonignorable nonresponse for household surveys with missing covariate information

open access: yes, 2010
In this paper we develop and apply new methods for handling not missing at random (NMAR) nonresponse. We assume a model for the outcome variable under complete response and a model for the response probability, which is allowed to depend on the outcome ...
Pfeffermann, Danny, Sikov, Anna
core   +1 more source

Distributions of Wide Binary Stars in Theory and in Gaia Data. II. Reconstruction of Sample Probability Density of True Orbit Sizes

open access: yesThe Astronomical Journal
Wide binary stars are important for testing alternative models of gravitation in the weak-field regime and understanding the statistical outcomes of dynamical interactions in the general Galactic field. The Gaia mission’s collection of weakly bound pairs
Valeri V. Makarov
doaj   +1 more source

A Bias-corrected Luminosity Function for Red Supergiant Supernova Progenitor Stars

open access: yesThe Astrophysical Journal Letters
The apparent tension between the luminosity functions of red supergiant (RSG) stars and of RSG progenitors of Type II supernovae (SNe) is often referred to as the RSG problem and it motivated some to suggest that many RSGs end their life without an SN ...
Nora L. Strotjohann   +2 more
doaj   +1 more source

Singular random matrix decompositions: distributions. [PDF]

open access: yes, 2002
Assuming that Y has a singular matrix variate elliptically contoured distribution with respect to the Hausdorff measure, the distributions of several matrices associated to QR, modified QR, SV and Polar decompositions of matrix Y are determined, for ...
González Farías, Graciela   +1 more
core   +1 more source

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