Long-range similarity. Similarity between networks corresponding to two consecutive aggregation windows of 1 day, 1 week, and 2 weeks. The two shaded areas correspond to national holiday periods: the autumn holiday (left), and holidays around Christmas and New Year (right). The zero-valued points for the 1-day curve are from missing data.
Krings et al. EPJ Data Science 2012 1:4 doi:10.1140/epjds4