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基于改进极限学习机的光谱定量建模方法

周美灵 郑德智 娄格 刘峥

周美灵, 郑德智, 娄格, 等 . 基于改进极限学习机的光谱定量建模方法[J]. 北京航空航天大学学报, 2017, 43(6): 1208-1215. doi: 10.13700/j.bh.1001-5965.2016.0459
引用本文: 周美灵, 郑德智, 娄格, 等 . 基于改进极限学习机的光谱定量建模方法[J]. 北京航空航天大学学报, 2017, 43(6): 1208-1215. doi: 10.13700/j.bh.1001-5965.2016.0459
ZHOU Meiling, ZHENG Dezhi, LOU Ge, et al. Quantitative spectral modeling method based on improved extreme learning machine[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(6): 1208-1215. doi: 10.13700/j.bh.1001-5965.2016.0459(in Chinese)
Citation: ZHOU Meiling, ZHENG Dezhi, LOU Ge, et al. Quantitative spectral modeling method based on improved extreme learning machine[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(6): 1208-1215. doi: 10.13700/j.bh.1001-5965.2016.0459(in Chinese)

基于改进极限学习机的光谱定量建模方法

doi: 10.13700/j.bh.1001-5965.2016.0459
基金项目: 

国家科技支撑计划 2014BAF08B01

详细信息
    作者简介:

    周美灵, 女, 硕士研究生。主要研究方向:近红外光谱分析

    郑德智, 男, 博士, 副教授, 博士生导师。主要研究方向:传感器敏感机理及检测系统

    通讯作者:

    郑德智, E-mail:zhengdezhi@buaa.edu.cn

  • 中图分类号: O433.4;TB96

Quantitative spectral modeling method based on improved extreme learning machine

Funds: 

National Key Technology Research and Development Program of China 2014BAF08B01

More Information
  • 摘要:

    依据近红外光谱(NIR)产生原理,提出了粒子群优化极限学习机(PSO-ELM)算法,运用于小样本氨水浓度定量分析。通过优化极限学习机(ELM)隐藏节点参数,解决了极限学习机由于输入权值和隐含层偏差随机产生的建模结果具有随机性的问题,提高了预测模型的稳定性、精确度和泛化性能。经实验验证,优化后的PSO-ELM相比ELM,模型预测集均方根误差由0.011 66减小至0.003 22,预测集相关系数由0.995 1提高至0.997 9。将优化后的模型预测结果与支持向量机(SVM)、BP神经网络算法等传统方法的建模结果进行对比,优化后的PSO-ELM算法具有较高的精确度和良好的泛化性能,模型预测效果优于传统的定量回归分析算法。

     

  • 图 1  氨分子振动模式

    Figure 1.  Vibration modes of ammonia molecule

    图 2  氨水近红外吸收光谱

    Figure 2.  Near infrared absorption spectrum of ammonia

    图 3  典型单隐含层前馈神经网络结构

    Figure 3.  A typical single-hidden layer feedforward neural network structure

    图 4  PSO-ELM算法流程图

    Figure 4.  Flowchart of PSO-ELM algorithm

    图 5  氨水近红外光谱预处理前后对比

    Figure 5.  Comparison of ammonia near infrared spectrum before and after preprocessing

    图 6  4种算法训练集拟合结果

    Figure 6.  Imitative effects of training sets of four algorithms

    图 7  4种算法预测集拟合结果

    Figure 7.  Imitative effects of prediction sets of four algorithms

    表  1  训练集拟合效果对比

    Table  1.   Comparison of imitative effects of training sets

    算法类型 RMSEC Rc
    BP-ANN/SVM 0.032 783 0.997 3
    ELM/PSO-ELM 0.001 543 0.999 6
    下载: 导出CSV

    表  2  4种算法建模结果对比

    Table  2.   Comparison of modeling results among four algorithms

    算法类型 氨水浓度 浓度误差 RMSEP Rp
    真实值 预测值
    BP-ANN 0.04 0.064 23 0.024 23 0.014 28 0.993 8
    0.09 0.092 75 0.002 75
    0.14 0.145 53 0.005 33
    0.19 0.179 77 -0.010 23
    0.24 0.220 36 -0.019 64
    SVM 0.04 0.040 84 0.000 84 0.014 55 0.980 7
    0.09 0.092 72 0.002 72
    0.14 0.130 62 -0.009 38
    0.19 0.189 76 -0.000 24
    0.24 0.207 74 -0.032 26
    ELM 0.04 0.013 72 -0.026 28 0.011 66 0.995 1
    0.09 0.103 68 0.013 68
    0.14 0.136 14 -0.003 86
    0.19 0.189 76 -0.000 24
    0.24 0.231 55 -0.008 45
    PSO-ELM 0.04 0.042 64 0.002 64 0.003 22 0.997 9
    0.09 0.085 39 -0.004 61
    0.14 0.138 42 -0.001 58
    0.19 0.194 34 0.004 34
    0.24 0.238 40 -0.001 60
    下载: 导出CSV
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出版历程
  • 收稿日期:  2016-05-31
  • 录用日期:  2016-07-01
  • 网络出版日期:  2017-06-20

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