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4 papers · 1 filter
Extreme Scale Survey Simulation with Python Workflows
A. S. Villarreal, Yadu Babuji, Tom Uram +3
The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will soon carry out an unprecedented wide, fast, and deep survey of the sky in multiple optical bands. The data…
Deep Learning at Scale for the Construction of Galaxy Catalogs in the Dark Energy Survey
Asad Khan, E. A. Huerta, Sibo Wang +3
The scale of ongoing and future electromagnetic surveys pose formidable challenges to classify astronomical objects. Pioneering efforts on this front include citizen science campai…
Umbrella sampling: a powerful method to sample tails of distributions
Charles Matthews, Jonathan Weare, Andrey Kravtsov +1
We present the umbrella sampling (US) technique and show that it can be used to sample extremely low probability areas of the posterior distribution that may be required in statist…
HACC: Simulating Sky Surveys on State-of-the-Art Supercomputing Architectures
Salman Habib, Adrian Pope, Hal Finkel +11
Current and future surveys of large-scale cosmic structure are associated with a massive and complex datastream to study, characterize, and ultimately understand the physics behind…