Detecting and Identifying Industrial Gases by a Method Based on Olfactory Machine at Different Concentrations

Figure 5

Classification results of SLLE when (a) , (b) , and (c) . The horizontal axis represents the feature vector space corresponding to the selected first eigenvalue, and the vertical axis represents the selected second eigenvalue corresponding to the feature space. Both constitute a dimensionality reduction in two-dimensional space.

(a)

(b)

(c)