Figure 5
From: Spatio-temporal techniques for user identification by means of GPS mobility data
Empirical CDF of the geometric separability over the three datasets. For each dataset, we show the cumulative probability (y-axis) of the per class geometrical separability (x-axis). The red line refers to the case where only the spatial information is used, whereas the blue line refers to the case in which also time is taken into account. We observe that in general the addition of the temporal dimension makes the data much easier to separate.