Channel Attention Convolutional Neural Network for Chinese Baijiu Detection with E-Nose

Shanshan Zhang, Yu Cheng, Dehan Luo, Jiafeng He, Angus K.Y. Wong, Kevin Hung

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Electronic nose (E-nose) plays an important role in the detection of Chinese baijiu, which is an alcoholic beverage of high reputation. However, traditional e-nose data processing relies on manual selection of features with complicated preprocessing steps. The production process of baijiu with the same flavor is similar, but due to the limited number of sensors, it is not easy to quickly extract specific features with e-nose. To overcome this shortcoming, we propose a novel method based on Channel Attention Convolutional Neural Network (CA-CNN) for authenticity identification of Chinese baijiu. The underlying channel attention module analyzes the dependencies between channels and learning weights in order to improve the detection accuracy. In particular, we evaluated the comprehensive performance of the system by comparing it with traditional machine learning methods. The prediction accuracy of the CA-CNN (98.53%) is better than the back-propagation artificial neural network (BP-ANN) (90.83%), the support vector machine (SVM) (84.5%), and the random forest (RF) (86.867%). The experiment results show that the CA-CNN has reasonable reliability, stability and good prediction performance in the quality classification of Chinese baijiu. It provides an effective reference method for the standardization of baijiu quality inspection.

Original languageEnglish
Article number9416478
Pages (from-to)16170-16182
Number of pages13
JournalIEEE Sensors Journal
Volume21
Issue number14
DOIs
Publication statusPublished - 15 Jul 2021

Keywords

  • Chinese baijiu
  • E-nose
  • channel attention
  • convolutional neural network
  • detection

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