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.
|Publication status||Published - 19 Dec 2022|
Bibliographical noteFunding Information:
This research was funded by [the National Scientific Foundation of China] grant number , [HeYuan Planned Program in Science and Technology] grant number , [Generic Technique Innovation Team Construction of Modern Agriculture of Guangdong Province] grant number [2022KJ130, 2023KJ130], [National Key Research and Development Program of Thirteenth Five-Year Plan] grant number [2017YFC1601700].
© 2022 by the authors.
- Bayes information fusion
- near infrared spectrum
- Raman spectrum
ASJC Scopus subject areas
- Food Science
- Health(social science)
- Health Professions (miscellaneous)
- Plant Science