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Improved E-nose detection using initial reaction smellprint and advanced classifiers

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4 Author(s)
Uluyol, O. ; ES&S Labs., Honeywell, Minneapolis, MN, USA ; Wood, A. ; Kaiser, M. ; Arnold, K.

This paper presents a new smellprint derived from Cyra-nose 320 electronic nose, and a robust classification method. The new smellprint is based on the initial reactions of the chemiresistors rather than the bulk relative resistance change. This paper also presents a robust classification method employing Support Vector Machine method. Various combinations of the two smellprints-including their projections to a small number of principal components, are analyzed. The binary Support Vector Machine classification results are filtered through two different mechanisms; a set threshold on the total vote, and a winner-take-all method The classification accuracy is determined through the leave-one-out procedure. The developed system is used for identifying 5 compounds. Promising results are obtained in terms of improved detection at low concentrations and reduced false alarm rates.

Published in:

Sensors, 2003. Proceedings of IEEE  (Volume:2 )

Date of Conference:

22-24 Oct. 2003