Search Results for author: Jonathan Pritchard

Found 2 papers, 1 papers with code

Toward the Identifiability of Comparative Deep Generative Models

no code implementations29 Jan 2024 Romain Lopez, Jan-Christian Huetter, Ehsan Hajiramezanali, Jonathan Pritchard, Aviv Regev

Finally, we introduce a novel methodology for fitting comparative DGMs that improves the treatment of multiple data sources via multi-objective optimization and that helps adjust the hyperparameter for the regularization in an interpretable manner, using constrained optimization.

Cosmic Reionization and the 21-cm signal: Comparison between an analytical model and a simulation

1 code implementation20 Aug 2007 Mario G. Santos, Alexandre Amblard, Jonathan Pritchard, Hy Trac, Renyue Cen, Asantha Cooray

Unlike the well-studied case where spin temperature is assumed to be significantly greater than the temperature of the cosmic microwave background due to uniform heating of the gas by X-rays, spatial fluctuations in both the Lya radiation field and X-ray intensity impact predictions related to the brightness temperature at z > 10, during the early stages of reionization and gas heating.

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