Knowledge Management System of Hefei Institute of Physical Science,CAS
Artificial neural networks combined multi-wavelength transmission spectrum feature extraction for sensitive identification of waterborne bacteria | |
Feng, Chun1,2; Zhao, Nanjing1,3![]() ![]() | |
2021-04-15 | |
发表期刊 | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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ISSN | 1386-1425 |
通讯作者 | Zhao, Nanjing(njzhao@aiofm.ac.cn) ; Yin, Gaofang(gfyin@aiofm.ac.cn) |
摘要 | Present research is focused on the rapid and accurate identification of bacterial species based on artificial neural networks combined with spectral data processing technology. The spectra of different bacterial species in the logarithmic growth phase were obtained. Model input features were extracted from the raw spectra using signal processing techniques, including normalization, principal component analysis (PCA) and area-based feature value extraction. The identification models based on artificial neural network of back propagation neural networks (BPNN), generalized regression neural networks (GRNN) and probabilistic neural networks (PNN) were developed using the extracted features in order to ascertain whether the different species of bacteria could be differentiated. The performance of developed models and its corresponding signal processing techniques is tested by the recognition accuracy of validation set and test set, and model error. The maximum recognition accuracy of normalized spectrum combined with BPNN was 95.5% (error: 10%, test accuracy: 100%). The total recognition accuracy of PCA-reduced features (200-400 nm) combined with GRNN resulted in 96.3%-96.8% (error: 3.3%-6.7%, test accuracy: 97.5%-100%). While the overall recognition accuracy of area-based features combined with GRNN reached 97.3% with test accuracy of 100% (model error: 5.0%). Choosing of model and signal processing techniques has a positive influence on improving classification accuracy, so as to make it possible to realize the rapid detection and online monitoring of waterborne microbial contamination. (c) 2020 Elsevier B.V. All rights reserved. |
关键词 | Bacterial species Identification Artificial neural networks Multi-wavelength transmission spectrum Generalized regression neural network Back propagation neural network |
DOI | 10.1016/j.saa.2020.119423 |
收录类别 | SCI |
语种 | 英语 |
资助项目 | Key Research and Development Plan of Anhui Province[1804a0802192] ; Natural Science Foundation of China[61875254] ; Natural Science Foundation of China[61705237] ; Natural Science Foundation of China[61805254] |
项目资助者 | Key Research and Development Plan of Anhui Province ; Natural Science Foundation of China |
WOS研究方向 | Spectroscopy |
WOS类目 | Spectroscopy |
WOS记录号 | WOS:000621417000003 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/120986 |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Zhao, Nanjing; Yin, Gaofang |
作者单位 | 1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Key Lab Opt Monitoring Technol Environm, Hefei 230031, Anhui, Peoples R China |
第一作者单位 | 中科院安徽光学精密机械研究所 |
通讯作者单位 | 中科院安徽光学精密机械研究所 |
推荐引用方式 GB/T 7714 | Feng, Chun,Zhao, Nanjing,Yin, Gaofang,et al. Artificial neural networks combined multi-wavelength transmission spectrum feature extraction for sensitive identification of waterborne bacteria[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2021,251. |
APA | Feng, Chun.,Zhao, Nanjing.,Yin, Gaofang.,Gan, Tingting.,Yang, Ruifang.,...&Duan, Jingbo.(2021).Artificial neural networks combined multi-wavelength transmission spectrum feature extraction for sensitive identification of waterborne bacteria.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,251. |
MLA | Feng, Chun,et al."Artificial neural networks combined multi-wavelength transmission spectrum feature extraction for sensitive identification of waterborne bacteria".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 251(2021). |
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