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Spectroscopy and Spectral Analysis, Volume. 42, Issue 6, 1881(2022)

Classification of 2D Stellar Spectra Based on FFCNN

Ya-kun LU1、*, Bo QIU1、1; *;, A-li LUO2、2;, Xiao-yu GUO1、1;, Lin-qian WANG1、1;, Guan-long CAO1、1;, Zhong-rui BAI2、2;, and Jian-jun CHEN2、2;
Author Affiliations
  • 11. Hebei University of Technology, Tianjin 300400, China
  • 22. National Astronomical Observatory, Chinese Academy of Sciences, Beijing 100012, China
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    Figures&Tables (7)
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    References (15)
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    Figures & Tables(7)
    Spectral image of LAMOST object

    Fig. 1. Spectral image of LAMOST object

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    An image of 2D spectrum

    Fig. 2. An image of 2D spectrum

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    The structure of FFCNN

    Fig. 3. The structure of FFCNN

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    The influence of convolution kernel with different length on the accuracy and the time spent in the model training

    Fig. 4. The influence of convolution kernel with different length on the accuracy and the time spent in the model training

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    Classification results of all samples in the testing set

    Fig. 5. Classification results of all samples in the testing set

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    The comparison of classification results of using 2D and 1D spectra

    Fig. 6. The comparison of classification results of using 2D and 1D spectra

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    • Table 1. The precision, recall, F1-score and the accuracy of FFCNN model

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      Table 1. The precision, recall, F1-score and the accuracy of FFCNN model

      FGK
      Precision0.8760.7920.885
      Recall0.7630.9030.742
      F1-score0.8160.8430.807
      Accuracy0.829
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    Ya-kun LU, Bo QIU, A-li LUO, Xiao-yu GUO, Lin-qian WANG, Guan-long CAO, Zhong-rui BAI, Jian-jun CHEN. Classification of 2D Stellar Spectra Based on FFCNN[J]. Spectroscopy and Spectral Analysis, 2022, 42(6): 1881

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    Paper Information

    Category: Research Articles

    Received: May. 2, 2021

    Accepted: --

    Published Online: Nov. 14, 2022

    The Author Email: Ya-kun LU (846296206@qq.com)

    DOI:10.3964/j.issn.1000-0593(2022)06-1881-05

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology