High-throughput ML/AI methods to use multiple data-streams from different diagnostics to characterize dynamic tokamak discharges
POSTER
Abstract
Modern magnetic fusion research involves high-resolution temporal and spatial diagnostics from multiple sensor arrays and provides opportunities to apply modern fusion-specific numerical linear algebra methods ({\it i}) to identify and optimize data reduction methods for real-time discharge control and ({\it ii}) to advance our understanding of fundamental behaviors of magnetically-confined plasma. This presentation uses measurements from recently expanded diagnostics on Columbia University's High Beta Tokamak-Extended Pulse (HBT-EP) that capture complex behaviors and records high-resolution, high-speed streams of magnetic, soft-x-ray, current, and optical data. The results of numerical analyses of these data streams from HBT-EP are examined, as well as how statistical methods such as the time-domain singular value decomposition and novel applications of methods from the field of ``randomized numerical linear algebra'' (rNLA) can be applied to fusion diagnostic data.
Authors
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Michael Mauel
Columbia Univ
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James Anderson
Columbia Univ
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R.N. Chandra
Columbia Univ, Columbia University
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Jeffrey Levesque
Columbia Univ, Columbia University, Columbia
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Boting Li
Columbia Univ, Columbia University
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A. Saperstein
Columbia Univ, Columbia University
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Ian Stewart
Columbia Univ, Columbia University
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Y. Wei
Columbia Univ
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G.A. Navratil
Columbia Univ, Columbia University