Machine learning-powered data cleaning for LEGEND: a semi-supervised approach using affinity propagation and support vector machines

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Hauptverfasser: León, E., Li, A., Schott, M. A. Bahena, Bos, B., Busch, M., Chapman, J. R., Duran, G. L., Gruszko, J., Henning, R., Martin, E. L., Wilkerson, J. F.
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Veröffentlicht: 2024
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author León, E.
Li, A.
Schott, M. A. Bahena
Bos, B.
Busch, M.
Chapman, J. R.
Duran, G. L.
Gruszko, J.
Henning, R.
Martin, E. L.
Wilkerson, J. F.
author_facet León, E.
Li, A.
Schott, M. A. Bahena
Bos, B.
Busch, M.
Chapman, J. R.
Duran, G. L.
Gruszko, J.
Henning, R.
Martin, E. L.
Wilkerson, J. F.
contents Neutrinoless double-beta decay ($0νββ$) is a rare nuclear process that, if observed, will provide insight into the nature of neutrinos and help explain the matter-antimatter asymmetry in the universe. The Large Enriched Germanium Experiment for Neutrinoless Double-Beta Decay (LEGEND) will operate in two phases to search for $0νββ$. The first (second) stage will employ 200 (1000) kg of High-Purity Germanium (HPGe) enriched in $^{76}$Ge to achieve a half-life sensitivity of 10$^{27}$ (10$^{28}$) years. In this study, we present a semi-supervised data-driven approach to remove non-physical events captured by HPGe detectors powered by a novel artificial intelligence model. We utilize Affinity Propagation to cluster waveform signals based on their shape and a Support Vector Machine to classify them into different categories. We train, optimize, test our model on data taken from a natural abundance HPGe detector installed in the Full Chain Test experimental stand at the University of North Carolina at Chapel Hill. We demonstrate that our model yields a maximum sacrifice of physics events of $0.024 ^{+0.004}_{-0.003} \%$. Our model is being used to accelerate data cleaning development for LEGEND-200 and will serve to improve data cleaning procedures for LEGEND-1000.
format Preprint
id arxiv_https___arxiv_org_abs_2410_14701
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Machine learning-powered data cleaning for LEGEND: a semi-supervised approach using affinity propagation and support vector machines
León, E.
Li, A.
Schott, M. A. Bahena
Bos, B.
Busch, M.
Chapman, J. R.
Duran, G. L.
Gruszko, J.
Henning, R.
Martin, E. L.
Wilkerson, J. F.
Data Analysis, Statistics and Probability
Nuclear Experiment
Instrumentation and Detectors
Neutrinoless double-beta decay ($0νββ$) is a rare nuclear process that, if observed, will provide insight into the nature of neutrinos and help explain the matter-antimatter asymmetry in the universe. The Large Enriched Germanium Experiment for Neutrinoless Double-Beta Decay (LEGEND) will operate in two phases to search for $0νββ$. The first (second) stage will employ 200 (1000) kg of High-Purity Germanium (HPGe) enriched in $^{76}$Ge to achieve a half-life sensitivity of 10$^{27}$ (10$^{28}$) years. In this study, we present a semi-supervised data-driven approach to remove non-physical events captured by HPGe detectors powered by a novel artificial intelligence model. We utilize Affinity Propagation to cluster waveform signals based on their shape and a Support Vector Machine to classify them into different categories. We train, optimize, test our model on data taken from a natural abundance HPGe detector installed in the Full Chain Test experimental stand at the University of North Carolina at Chapel Hill. We demonstrate that our model yields a maximum sacrifice of physics events of $0.024 ^{+0.004}_{-0.003} \%$. Our model is being used to accelerate data cleaning development for LEGEND-200 and will serve to improve data cleaning procedures for LEGEND-1000.
title Machine learning-powered data cleaning for LEGEND: a semi-supervised approach using affinity propagation and support vector machines
topic Data Analysis, Statistics and Probability
Nuclear Experiment
Instrumentation and Detectors
url https://arxiv.org/abs/2410.14701