2011
DOI: 10.13176/11.247
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Power Scaling of Chemiresistive Sensor Array Data for Odor Classification

Abstract: The steady state responses of chemical sensors like the tin-oxide and composite conducting polymer sensors exhibit power law dependency on the vapor concentration. In this research, it is shown that linearization of measured (raw) sensor signals by an inverse power scaling improves class separability in feature space, hence the classification efficiency of electronic noses based on these sensors. The follow up data processing is done by dimensional autoscaling, principal component analysis and backpropagation … Show more

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Cited by 9 publications
(5 citation statements)
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“…Sensor arrays can be comprised of different sensor types and technologies to combine their individual benefits. They have been widely used to detect, for example, fires [46], [47], odors [16], [48], and volatile organic compounds (VOCs) [49], [50].…”
Section: Sensor Arraysmentioning
confidence: 99%
See 1 more Smart Citation
“…Sensor arrays can be comprised of different sensor types and technologies to combine their individual benefits. They have been widely used to detect, for example, fires [46], [47], odors [16], [48], and volatile organic compounds (VOCs) [49], [50].…”
Section: Sensor Arraysmentioning
confidence: 99%
“…If only one hyperparameter is varied, the resulting errors are plotted as in Figure 3. 16. For two hyperparameters, the calibration, validation, and prediction errors can be plotted as three-dimensional surface, and for more than two, the remaining ones must be set to fixed values for visualization.…”
Section: Dav 3 Ementioning
confidence: 99%
“…Preprocessing filters chemical vapor distinguishing pattern from non-distinguishing background contributions by scaling, normalization and denoising [3]. In this context our earlier studies [4,5] establishes a link between sensor model and data pre-processing methods. Feature extraction and selection is another significant step of pattern recognition unit accountable for the chemical vapor recognition efficiency of E-nose.…”
Section: Introductionmentioning
confidence: 99%
“…Many articles on this subject have been published over the last few years, mainly in relation to the food and beverage industry, but also concerning environmental, agricultural, medical topics and automotive industry, among others. However, the number of studies dedicated to nose based odor originality systems is still very limited, probably due to the complexity of their matrices (Wongchoosuk et al, 2009;Myrick et al, 2009;Tang et al, 2010;Jha and Yaava, 2011;Bucak and Karlik, 2009;Huang and Wan, 2009;Zeng et al, 2009;Lange et al, 2009;Vera et al, 2011;Song et al, 2011;Cole et al, 2011;Im et al, 2011;Baldwin et al, 2011;Huan et al, 2011;Phaisangittisagul and Nagle, 2011).…”
Section: Introductionmentioning
confidence: 99%