• Laser & Optoelectronics Progress
  • Vol. 58, Issue 12, 1215002 (2021)
Jin Zhang, Yipeng Liao*, Shiyuan Chen, and Weixing Wang
Author Affiliations
  • College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
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    DOI: 10.3788/LOP202158.1215002 Cite this Article Set citation alerts
    Jin Zhang, Yipeng Liao, Shiyuan Chen, Weixing Wang. Flotation Dosing State Recognition Based on Multiscale CNN Features and RAE-KELM[J]. Laser & Optoelectronics Progress, 2021, 58(12): 1215002 Copy Citation Text show less
    Foam images in different dosing states. (a) s1; (b) s2; (c) s3; (d) s4
    Fig. 1. Foam images in different dosing states. (a) s1; (b) s2; (c) s3; (d) s4
    Flow chart of the NSST-CNN model
    Fig. 2. Flow chart of the NSST-CNN model
    Structure of the RAE-KELM. (a) Self-encoder; (b) RAE-KELM
    Fig. 3. Structure of the RAE-KELM. (a) Self-encoder; (b) RAE-KELM
    Flow chart of the parameter optimization
    Fig. 4. Flow chart of the parameter optimization
    Overall framework of our method
    Fig. 5. Overall framework of our method
    Performances of different optimization algorithms
    Fig. 6. Performances of different optimization algorithms
    Visualization results of CNN features. (a) MNIST handwritten data set; (b) flotation foam image in state s1; (c) flotation foam image in state s2
    Fig. 7. Visualization results of CNN features. (a) MNIST handwritten data set; (b) flotation foam image in state s1; (c) flotation foam image in state s2
    Testing accuracies of different feature extraction methods. (a) MNIST handwritten data set; (b) flotation foam image
    Fig. 8. Testing accuracies of different feature extraction methods. (a) MNIST handwritten data set; (b) flotation foam image
    Recognition result of flotation dosing states
    Fig. 9. Recognition result of flotation dosing states
    Part of the recognized wrong image. (a) s1 is misjudged as s2; (b) s3 is misjudged as s2; (c) s4 is misjudged as s3
    Fig. 10. Part of the recognized wrong image. (a) s1 is misjudged as s2; (b) s3 is misjudged as s2; (c) s4 is misjudged as s3
    LayerScale 1Scale 2Scale N(N=3,4,5,…)
    Step sizeNumber of coresCore sizeStep sizeNumber of coresCore sizeStep sizeNumber of coresCore size
    C11645×51645×51645×5
    P22642×22642×22642×2
    C31323×31643×31643×3
    P42322×22642×22642×2
    C51322×21322×21642×2
    P62322×22322×22642×2
    Fully connected layer1024 neurons
    Table 1. Parameters of the CNN model
    Δθ0.10.20.30.40.5
    PO /%MOPO /%MOPO /%MOPO /%MOPO /%MO
    1.197.47213.497.91205.198.56211.199.11196.398.79215.6
    1.298.21196.597.88208.899.24204.499.20204.899.06204.6
    1.397.91201.698.24199.498.78199.799.15201.699.35198.4
    1.498.33208.198.56197.698.95196.499.64198.799.64202.7
    1.599.11204.399.55204.599.35196.899.70196.999.81205.3
    1.698.76197.499.36210.499.12201.399.63206.299.65203.8
    1.799.23196.699.87201.899.76195.299.95190.899.75206.2
    1.899.05192.199.78195.399.23198.899.63194.399.54197.5
    1.998.86195.899.36199.299.34205.699.24201.899.21198.0
    2.098.25202.098.95206.498.97207.199.26202.798.99201.3
    Table 2. QBFA's average optimal value probability and number of iterations under different parameters
    Combination pairQGA+KELMQGA+RAE-KELMQBFA+KELMQBFA+RAE-KELM
    Training accuracy /%97.4799.5598.9899.88
    Training time /s5659.555802.576050.366132.32
    Testing accuracy /%94.5896.7796.6498.89
    Testing time /s5.045.085.185.11
    Table 3. Recognition results of flotation dosing states by different combination pairs
    MethodRef. [2]Ref. [3]Ref. [5]Ref. [7]Ours
    Training accuracy /%89.6786.2198.3898.8999.88
    Training time /s1598.411444.2214365.216079.526132.32
    Testing accuracy /%82.2276.3593.2595.7898.89
    Testing time /s4.474.256.435.325.11
    Table 4. Recognition results of different methods for flotation dosing states
    Jin Zhang, Yipeng Liao, Shiyuan Chen, Weixing Wang. Flotation Dosing State Recognition Based on Multiscale CNN Features and RAE-KELM[J]. Laser & Optoelectronics Progress, 2021, 58(12): 1215002
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