Fig. 3
From: Dimension independent data sets approximation and applications to classification
Decision boundary of the signal \(u_{\mathbb {D}_{m,j}}\) for \(m=16\), \(j=2,3\), and \(a=0,1,1,2\) with 2% data corruption rate. Depicted are the data set (blue dots correspond to the value 1 while magenta dots to the value 0) and the level line corresponding to 50% of the signal’s maximal value. The parameter \(\alpha \) grows from left to right. The boundary of the set \(S_j\) appears as a dashed black line