Chen-yang LI, Xiong-fei CHEN, Yong ZHANG, Ya-wen WANG, Zhong-chao TIAN, Shi-gong WANG, Zhen-yang ZHAO, Ying LIU, Peng-yu LIU. Study on Identification Method Based on XGBoost Model for Aluminum Alloy Using Laser-Induced Breakdown Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2021, 41(2): 624
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 2, 624 (2021)
Fig. 1. The schematic diagram of LIBS experiment setup
Fig. 2. The spectral matrices of six kinds of standard aluminium alloy
Fig. 3. The feature importance scores given by XGBoost
Fig. 4. Distribution map of spectral data under 4 featres of XGBoost model
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Table 1. The values concentration (Wt.%) of impurity elements in six alloys
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Table 2. Spectral lines for analysis
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Table 3. Super parameters of XGBoost model
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Table 4. The Coefficient of Variation of all analytical elements
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Table 5. Identification results of Test Sets
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