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arXiv 2006.10489astro-ph.IMcs.LGstat.ML
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开放超新星星表中Ia型超新星的光度学分类

Photometric Data-driven Classification of Type Ia Supernovae in the Open Supernova Catalog

National Research University Higher School of Economics(国家研究型高等经济学院);Sternberg Astronomical Institute, Lomonosov Moscow State University(罗蒙诺索夫莫斯科国立大学斯特恩伯格天文研究所);University of Illinois at Urbana–Champaign(伊利诺伊大学厄巴纳-香槟分校)

Stanislav Dobryakov, Konstantin Malanchev, Denis Derkach, Mikhail Hushchyn

摘要:

我们提出了一种新的方法,基于机器学习的检测Ia型超新星的光度信息。与其他方法不同,在训练过程中只使用真实的观察数据。尽管在相对较小的样本上进行了训练,但该方法在Open Supernovae Catalog的真实数据上显示出良好的结果。我们还研究了从PLASTiCC模拟训练数据集到实际数据应用程序的模型转移,以及相反的情况,并发现在这两种情况下性能显着下降,突出了模拟数据和实际数据之间存在的差异。

英文摘要:

We propose a novel approach for a machine-learning-based detection of the type Ia supernovae using photometric information. Unlike other approaches, only real observation data is used during training. Despite being trained on a relatively small sample, the method shows good results on real data from the Open Supernovae Catalog. We also investigate model transfer from the PLAsTiCC simulations train dataset to real data application, and the reverse, and find the performance significantly decreases in both cases, highlighting the existing differences between simulated and real data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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