期刊
JOURNAL OF COMPUTATIONAL SCIENCE
卷 55, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jocs.2021.101456
关键词
Compound; Substructure; Fourier-transform infrared spectroscopy; Convolutional neural network; Metamorphic testing; Test oracle
FTIR is a commonly used technique in chemical analysis that predicts the presence of various substructures in compounds based on their absorbance patterns. Researchers developed a neural network training system and applied metamorphic testing to enhance the training process, which was proven to be effective in developing classifier neural networks.
Fourier-transform infrared spectroscopy (FTIR) is one of the commonly used techniques in chemical analysis. The chemical bonds that are present in samples absorb infrared light at various wavelengths based on the properties of chemical bonds between sets of atoms bonded together. By extracting these absorbance patterns, we aim to predict the presence or absence of various substructures within a compound based on its FTIR spectrum. Hypothetically, a powerful machine learning method with enough examples of a substructure should be able to identify the structure of an unknown compound by analyzing its FTIR spectrum. To this extent we developed a novel system that trains neural networks to predict the presence of various substructures within a compound. We then propose to apply metamorphic testing to verify the network training process. Experimental results exhibit that metamorphic testing helps to develop a more effective training process for classifier neural networks.
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