Figure 1
From: Product progression: a machine learning approach to forecasting industrial upgrading
Left: transition probabilities between the binary states of the export matrix M. The strong persistency implies the importance of the study of the appearance of new products (called activations) with respect to the unconditional presence of one matrix element (in the following, full matrix). Right: the fraction of nonzero elements in M as a function of time. A strong class imbalance is present.
