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Recognition Algorithms in E-Nose: A Review

期刊

IEEE SENSORS JOURNAL
卷 23, 期 18, 页码 20460-20472

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2023.3302868

关键词

Artificial neural network (ANN); E-nose; gas molecule recognition; machine learning

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This article introduces the rapid applications of the smart electronic nose (E-nose) in various fields and emphasizes the role of recognition algorithms in its performance. The traditional algorithms and artificial neural networks (ANNs)-based algorithms are analyzed in detail, along with the evaluation metrics and challenges.
In recent years, the smart electronic nose (E-nose) has witnessed rapid applications in diverse fields. Apart from sensor arrays, the recognition algorithm plays a determinant role in the performance of E-nose. Focusing on the signal processing of E-nose, the response signal characteristic of a sensor is introduced first in this article. Based on the differences between the processing of features, the algorithms are subsequently divided into traditional and artificial neural networks (ANNs)-based, and their respective properties are specifically analyzed through the application in reality. The evaluation metrics for these algorithms are then summarized. Finally, the challenges and prospects of the algorithm are concluded. This article aims to help researchers in diverse fields employ and explore the appropriate gas recognition algorithms for the emerging applications of E-nose.

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