165 citations · 913 across the 13 of their papers we have counts for
13 papers
Finite size corrections for neural network Gaussian processes
Joseph M. Antognini
There has been a recent surge of interest in modeling neural networks (NNs) as Gaussian processes. In the limit of a NN of infinite width the NN becomes equivalent to a Gaussian pr…
WHAM!: Extending Speech Separation to Noisy Environments
Gordon Wichern, Joe Antognini, Michael Flynn +5
Recent progress in separating the speech signals from multiple overlapping speakers using a single audio channel has brought us closer to solving the cocktail party problem. Howeve…
Measuring the Effects of Data Parallelism on Neural Network Training
Christopher J. Shallue, Jaehoon Lee, Joseph Antognini +3
Recent hardware developments have dramatically increased the scale of data parallelism available for neural network training. Among the simplest ways to harness next-generation har…
Velocity-resolved reverberation mapping of five bright Seyfert 1 galaxies
G. De Rosa, M. M. Fausnaugh, C. J. Grier +99
We present the first results from a reverberation-mapping campaign undertaken during the first half of 2012, with additional data on one AGN (NGC 3227) from a 2014 campaign. Our ma…
PCA of high dimensional random walks with comparison to neural network training
Joseph M. Antognini, Jascha Sohl-Dickstein
One technique to visualize the training of neural networks is to perform PCA on the parameters over the course of training and to project to the subspace spanned by the first few P…
Synthesizing Diverse, High-Quality Audio Textures
Joseph Antognini, Matt Hoffman, Ron J. Weiss
Texture synthesis techniques based on matching the Gram matrix of feature activations in neural networks have achieved spectacular success in the image domain. In this paper we ext…
KELT-4Ab: An inflated Hot Jupiter transiting the bright (V~10) component of a hierarchical triple
Jason D. Eastman, Thomas G. Beatty, Robert J. Siverd +42
We report the discovery of KELT-4Ab, an inflated, transiting Hot Jupiter orbiting the brightest component of a hierarchical triple stellar system. The host star is an F star with $…
Dynamical formation & scattering of hierarchical triples: Cross sections, Kozai-Lidov oscillations, and collisions
Joseph M. O. Antognini, Todd A. Thompson
Dynamical scattering of binaries and triple systems of stars, planets, and compact objects may produce highly inclined triple systems subject to Kozai-Lidov (KL) oscillations, pote…
Timescales of Kozai-Lidov oscillations at quadrupole and octupole order in the test particle limit
Joseph M. O. Antognini
Kozai-Lidov (KL) oscillations in hierarchical triple systems have found application to many astrophysical contexts, including planet formation, type Ia supernovae, and supermassive…
Rapid Eccentricity Oscillations and the Mergers of Compact Objects in Hierarchical Triples
Joe M. Antognini, Benjamin J. Shappee, Todd A. Thompson +1
Kozai-Lidov (KL) oscillations can accelerate compact object mergers via gravitational wave (GW) radiation by driving the inner binaries of hierarchical triples to high eccentriciti…
Greatly Enhanced Eccentricity Oscillations in Quadruple Systems Composed of Two Binaries: Implications for Stars, Planets, and Transients
Ondrej Pejcha, Joe M. Antognini, Benjamin J. Shappee +1
We study the orbital evolution of hierarchical quadruple systems composed of two binaries on a long mutual orbit, where each binary acts as a Kozai-Lidov (KL) perturber on the othe…
The Lifetime and Powers of FR IIs in Galaxy Clusters
Joe Antognini, Jonathan Bird, Paul Martini
We have identified and studied a sample of 151 FR IIs found in brightest cluster galaxies (BCGs) in the MaxBCG cluster catalog with data from FIRST and NVSS. We have compared the r…
SN 2010jl in UGC 5189: Yet another luminous type IIn supernova in a metal-poor galaxy
R. Stoll, J. L. Prieto, K. Z. Stanek +5
We present ASAS data starting 25 days before the discovery of the recent type IIn SN 2010jl, and we compare its light curve to other luminous IIn SNe, showing that it is a luminous…