Comparing the hierarchy of keywords in on-line news portals
Table 1: Ratios of inversions between centralities and real-world occurrence frequencies, calculated for tag pairs coappearing in statistically significant numbers. Totally random case corresponds to 0.5.
['dataset', 'ratio of inversions']
If tags are assigned to articles absolutely at random, the result would correspond to a 0.5 inversion rate, i.e., half of the coappearing tag pairs would have similar centrality and frequency ordering. They are followed by the New York Times, and finally, the Australian has a score close to the random case.