Neural Network System for the Identification of Infrared Spectra

DOI Web Site 被引用文献4件
  • Kazutoshi Tanabe
    National Chemical Laboratory for Industry, Tsukuba, Ibaraki 305, Japan (K.T., T.T.); and FACOM-HITAC Limited, Tsukuba, Ibaraki 305, Japan (H. U.)
  • Tadao Tamura
    National Chemical Laboratory for Industry, Tsukuba, Ibaraki 305, Japan (K.T., T.T.); and FACOM-HITAC Limited, Tsukuba, Ibaraki 305, Japan (H. U.)
  • Hiroyuki Uesaka
    National Chemical Laboratory for Industry, Tsukuba, Ibaraki 305, Japan (K.T., T.T.); and FACOM-HITAC Limited, Tsukuba, Ibaraki 305, Japan (H. U.)

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<jats:p> A neural network system has been developed on a personal computer to identify 1129 infrared spectra. The system is composed of two steps of networks. The first step classifies 1129 spectra into 40 categories, and each unit of the output layer is connected to one of the 40 networks in the second step, which identify each spectrum. Each network is composed of three layers. The input, intermediate, and output layers are composed of 250, 40, and 40 units, respectively. Intensity data at 250 wavenumber points between 1800 and 550 cm<jats:sup>−1</jats:sup> of the infrared spectra are entered into the input layer of each network. The training of the networks was carried out with the spectral data of 1129 compounds stored in the SDBS system, and thus the networks were successfully constructed. On the basis of the results, the system has been developed by preparing pre- and post-processing programs. The system can identify each unknown spectrum within 0.1 s, and is quite efficient for identifying infrared spectra on a personal computer. </jats:p>

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