Feature Selection for Chemical Sensor Arrays Using Mutual Information
Figure 6
Average classification performance from [7] using the feature subsets identified by MI, weighted by the number of times each set was chosen in the training sets.
Each cell in the figure represents a number of sensors (x-axis) vs. time points (y-axis) combination. The colours in the cell represent the classification performance as shown by the logarithmic colour scale. High performance levels, close to unity, are resolved into many colour gradations from dark red to cyan. Weaker performances, below 0.9, are compressed into a few shades of blue.