A Machine Learning Enhanced Approach for Automated Sunquake Detection in Acoustic Emission Maps
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Published:2023-01
Issue:1
Volume:298
Page:
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ISSN:0038-0938
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Container-title:Solar Physics
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language:en
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Short-container-title:Sol Phys
Author:
Mercea VanessaORCID, Paraschiv Alin RazvanORCID, Lacatus Daniela AdrianaORCID, Marginean AncaORCID, Besliu-Ionescu DianaORCID
Abstract
AbstractSunquakes are seismic emissions visible on the solar surface, associated with some solar flares. Although discovered in 1998, they have only recently become a more commonly detected phenomenon. Despite the availability of several manual detection guidelines, to our knowledge, the astrophysical data produced for sunquakes is new to the field of machine learning. Detecting sunquakes is a daunting task for human operators, and this work aims to ease and, if possible, to improve their detection. Thus, we introduce a dataset constructed from acoustic egression-power maps of solar active regions obtained for Solar Cycles 23 and 24 using the holography method. We then present a pedagogical approach to the application of machine-learning representation methods for sunquake detection using autoencoders, contrastive learning, object detection and recurrent techniques, which we enhance by introducing several custom, domain-specific data augmentation transformations. We address the main challenges of the automated sunquake-detection task, namely the very high noise patterns in and outside the active region shadow and the extreme class imbalance given by the limited number of frames that present sunquake signatures. With our trained models, we find temporal and spatial locations of peculiar acoustic emission and qualitatively associate them to eruptive and high energy emission. While noting that these models are still in a prototype stage, and there is much room for improvement in metrics and bias levels, we hypothesize that their agreement on example use cases has the potential to enable detection of weak solar acoustic manifestations.
Funder
NSF Romanian Ministry of Research
Publisher
Springer Science and Business Media LLC
Subject
Space and Planetary Science,Astronomy and Astrophysics
Reference50 articles.
1. Bengio, Y., Courville, A., Vincent, P.: 2013, Representation learning: a review and new perspectives. IEEE Trans. Pattern Anal. Mach. Intell. 35, 1798. 2. Besliu-Ionescu, D., Donea, A., Cally, P.: 2017, Current state of seismic emission associated with solar flares. Sun Geosph. 12, 59. ADS. 3. Besliu-Ionescu, D., Donea, A., Cally, P., Lindsey, C.: 2012, Web-based comprehensive data archive of seismically active solar flares. In: Mariş, G., Demetrescu, C. (eds.) Advances in Solar and Solar-Terrestrial Physics, Research Signpost, Kerala, 31. ADS. 4. Cai, L., Gao, H., Ji, S.: 2019, Multi-stage variational auto-encoders for coarse-to-fine image generation. In: Berger-Wolf, T., Chawla, N. (eds.) Proc. 2019 SIAM Internat. Conf. Data Mining (SDM), SIAM, Philadelphia, 630. 978-1-61197-567-3. DOI. 5. Cao, Z., Li, X., Feng, Y., Chen, S., Xia, C., Zhao, L.: 2021, ContrastNet: unsupervised feature learning by autoencoder and prototypical contrastive learning for hyperspectral imagery classification. Neurocomputing 460, 71. DOI.
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