4.7 Article

Bayesian Fusion Model Enhanced Codfish Classification Using Near Infrared and Raman Spectrum

期刊

FOODS
卷 11, 期 24, 页码 -

出版社

MDPI
DOI: 10.3390/foods11244100

关键词

codfish; authenticity; Raman spectrum; near infrared spectrum; Bayes information fusion

资金

  1. National Scientific Foundation of China [31871883]
  2. HeYuan Planned Program in Science and Technology [2019041]
  3. Generic Technique Innovation Team Construction of Modern Agriculture of Guangdong Province [2022KJ130, 2023KJ130]
  4. National Key Research and Development Program of Thirteenth Five-Year Plan [2017YFC1601700]

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In this study, a Bayesian-based decision fusion technique was developed to identify codfish using near infrared and Raman spectroscopy. The Bayesian model showed significantly better classification performance compared to other spectroscopic methods and data fusion methods.
In this study, a Bayesian-based decision fusion technique was developed for the first time to quickly and non-destructively identify codfish using near infrared (NIRS) and Raman spectroscopy (RS). NIRS and RS spectra from 320 codfish samples were collected, and separate partial least squares discriminant analysis (PLS-DA) models were developed to establish the relationship between the raw data and cod identity for each spectral technique. Three decision fusion methods: decision fusion, data layer or feature layer, were tested and compared. The decision fusion model based on the Bayesian algorithm (NIRS-RS-B) was developed on the optimal discrimination features of NIRS and RS data (NIRS-RS) extracted by the PLS-DA method whereas the other fusion models followed conventional, non-Bayesian approaches. The Bayesian model showed enhanced classification metrics (92% sensitivity, 98% specificity, 98% accuracy) that were significantly superior to those demonstrated by any of other two spectroscopic methods (NIRS, RS) and the two data fusion methods (data layer fused, NIRS-RS-D, or feature layer fused, NIRS-RS-F). This novel proposed approach can provide an alternative classification for codfish and potentially other food speciation cases.

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