Fig. 3
From: Graph mining for the detection of overcrowding and waste of resources in public transport
Distribution of weights of the edges of the supply and demand networks. a the weight distribution of the edges of the supply network is illustrated. In b the same distribution is shown for the demand network. The straight lines represent linear regressions [36, 37] applied to the data, the blue contoured lines represent the Nadaraya-Watson method [38, 39] and the blue dashed lines delimit the estimated 95% configuration interval by bootstrap [40, 41]. Both distributions were generated in 50 bins. In c the inclinations of the lines estimated by the regressions in both districts can be compared in the same view. Finally, in d, we show the cumulated distributions of the edge weights of the supply and demand networks