Researching | Research on Selection Method of LIBS Feature Variables Based on CART Regression Tree

Spectroscopy and Spectral Analysis, Volume. 41, Issue 10, 3240(2021)

Research on Selection Method of LIBS Feature Variables Based on CART Regression Tree

Wen YOU^1、*, Yang-peng XIA^1、1;, Yu-tao HUANG^1、1;, Jing-jun LIN^{2、2; *;}, and Xiao-mei LIN^{3、3; *;}

Author Affiliations

¹1. Department of Electronics and Electrical Engineering, Changchun University of Technology, Changchun 130012, China

²2. Department of Mechanical and Electrical Engineering, Changchun University of Technology, Changchun 130012, China

³3. Jilin University of Architecture and Technology, Changchun 130012, China

show less

Abstract Get PDF(in Chinese)

Figures&Tables (7)

Paper Information

Figures & Tables(7)

Fig. 1. Schematic diagram of experimental device

Download full size

View in Article

Fig. 2. Single variable calibration curve of CaⅡ 393.366 nm

Download full size

View in Article

Fig. 3. Partial least squares regression calibration curve

Download full size

View in Article

Fig. 4. The importance distribution of feature variables

Download full size

View in Article

Fig. 5. CART regression tree calibration curve

Download full size

View in Article

Table 1. The concentration of Ca in standard samples
View table
View in Article
Table 1. The concentration of Ca in standard samples
Sample number Concentration of Ca/Wt%
1# 0.02
2# 0.05
3# 0.08
4# 0.1
5# 0.15
6# 0.2
7# 0.25

Table 2. Comparison of calibration model parameters
View table
View in Article
Table 2. Comparison of calibration model parameters
模型 R² RMSEC
/Wt% RMSEP
/Wt% ARE
/%
单变量 0.933 2 0.019 2 0.017 7 11.604
PLSR 0.975 3 0.010 8 0.013 0 7.490
CART回归树 0.997 5 0.003 5 0.006 1 2.500

Tools

Get Citation

Copy Citation Text

Wen YOU, Yang-peng XIA, Yu-tao HUANG, Jing-jun LIN, Xiao-mei LIN. Research on Selection Method of LIBS Feature Variables Based on CART Regression Tree[J]. Spectroscopy and Spectral Analysis, 2021, 41(10): 3240

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites

Paper Information

Category: Research Articles

Received: Oct. 10, 2020

Accepted: --

Published Online: Oct. 29, 2021

The Author Email: YOU Wen (youwen@ccut.edu.cn)

DOI:10.3964/j.issn.1000-0593(2021)10-3240-05

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology