Search Results for author: Adrian M. Price-Whelan

Found 6 papers, 5 papers with code

Meta-Learning for One-Class Classification with Few Examples using Order-Equivariant Network

1 code implementation8 Jul 2020 Ademola Oladosu, Tony Xu, Philip Ekfeldt, Brian A. Kelly, Miles Cranmer, Shirley Ho, Adrian M. Price-Whelan, Gabriella Contardo

This paper presents a meta-learning framework for few-shots One-Class Classification (OCC) at test-time, a setting where labeled examples are only available for the positive class, and no supervision is given for the negative example.

Astronomy General Classification +3

astroplan: An Open Source Observation Planning Package in Python

1 code implementation27 Dec 2017 Brett M. Morris, Erik Tollerud, Brigitta Sipocz, Christoph Deil, Stephanie T. Douglas, Jazmin Berlanga Medina, Karl Vyhmeister, Toby R. Smith, Stuart Littlefair, Adrian M. Price-Whelan, Wilfred T. Gee, Eric Jeschke

We present astroplan - an open source, open development, Astropy affiliated package for ground-based observation planning and scheduling in Python.

Instrumentation and Methods for Astrophysics

Improving \textsl{Gaia} parallax precision with a data-driven model of stars

1 code implementation15 Jun 2017 Lauren Anderson, David W. Hogg, Boris Leistedt, Adrian M. Price-Whelan, Jo Bovy

Usually this prior represents beliefs about the stellar density distribution of the Milky Way.

Astrophysics of Galaxies

The Joker: A custom Monte Carlo sampler for binary-star and exoplanet radial velocity data

2 code implementations24 Oct 2016 Adrian M. Price-Whelan, David W. Hogg, Daniel Foreman-Mackey, Hans-Walter Rix

We capitalize on this by building a sampling method in which we densely sample the prior pdf in the non-linear parameters and perform rejection sampling using a likelihood function marginalized over the linear parameters.

Solar and Stellar Astrophysics Earth and Planetary Astrophysics

The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample

no code implementations11 Jul 2016 Shadab Alam, Metin Ata, Stephen Bailey, Florian Beutler, Dmitry Bizyaev, Jonathan A. Blazek, Adam S. Bolton, Joel R. Brownstein, Angela Burden, Chia-Hsun Chuang, Johan Comparat, Antonio J. Cuesta, Kyle S. Dawson, Daniel J. Eisenstein, Stephanie Escoffier, Héctor Gil-Marín, Jan Niklas Grieb, Nick Hand, Shirley Ho, Karen Kinemuchi, David Kirkby, Francisco Kitaura, Elena Malanushenko, Viktor Malanushenko, Claudia Maraston, Cameron K. McBride, Robert C. Nichol, Matthew D. Olmstead, Daniel Oravetz, Nikhil Padmanabhan, Nathalie Palanque-Delabrouille, Kaike Pan, Marcos Pellejero-Ibanez, Will J. Percival, Patrick Petitjean, Francisco Prada, Adrian M. Price-Whelan, Beth A. Reid, Sergio A. Rodríguez-Torres, Natalie A. Roe, Ashley J. Ross, Nicholas P. Ross, Graziano Rossi, Jose Alberto Rubiño-Martín, Ariel G. Sánchez, Shun Saito, Salvador Salazar-Albornoz, Lado Samushia, Siddharth Satpathy, Claudia G. Scóccola, David J. Schlegel, Donald P. Schneider, Hee-Jong Seo, Audrey Simmons, Anže Slosar, Michael A. Strauss, Molly E. C. Swanson, Daniel Thomas, Jeremy L. Tinker, Rita Tojeiro, Mariana Vargas Magaña, Jose Alberto Vazquez, Licia Verde, David A. Wake, Yuting Wang, David H. Weinberg, Martin White, W. Michael Wood-Vasey, Christophe Yèche, Idit Zehavi, Zhongxu Zhai, Gong-Bo Zhao

When combined with supernova Ia data, we find H0 = 67. 3+/-1. 0 km/s/Mpc even for our most general dark energy model, in tension with some direct measurements.

Cosmology and Nongalactic Astrophysics

Spending too much time at the Galactic bar: chaotic fanning of the Ophiuchus stream

1 code implementation25 Jan 2016 Adrian M. Price-Whelan, Branimir Sesar, Kathryn V. Johnston, Hans-Walter Rix

The Ophiuchus stellar stream is peculiar: (1) its length is short given the age of its constituent stars, and (2) several probable member stars that lie close in both sky position and velocity have dispersions in these dimensions that far exceed those seen within the stream.

Astrophysics of Galaxies

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