SKATR: a self-supervised summary transformer for SKA
SciPost Journals Publication Detail SciPost Phys. 18, 155 (2025) SKATR: A self-supervised summary transformer for SKA
Gespeichert in:
| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2025-05-14
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| In: |
SciPost physics
Year: 2025, Jahrgang: 18, Heft: 5, Pages: 1-29 |
| ISSN: | 2542-4653 |
| DOI: | 10.21468/SciPostPhys.18.5.155 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.21468/SciPostPhys.18.5.155 Verlag, kostenfrei, Volltext: https://scipost.org/10.21468/SciPostPhys.18.5.155 
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| Verfasserangaben: | Ayodele Ore, Caroline Heneka and Tilman Plehn |
MARC
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| 520 | |a SciPost Journals Publication Detail SciPost Phys. 18, 155 (2025) SKATR: A self-supervised summary transformer for SKA | ||
| 520 | |a The Square Kilometer Array will initiate a new era of radio astronomy by allowing 3D imaging of the Universe during Cosmic Dawn and Reionization. Modern machine learning is crucial to analyze the highly structured and complex signal. However, accurate training data is expensive to simulate, and supervised learning may not generalize. We introduce a self-supervised vision transformer, SKATR, whose learned encoding can be cheaply adapted for downstream tasks on 21cm maps. Focusing on regression and generative inference of astrophysical and cosmological parameters, we demonstrate that SKATR representations are maximally informative and that SKATR generalizes out-of-domain to differently-simulated, noised, and higher-resolution datasets. | ||
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