Figure 11

Shock leaderboard. Time series of the ranked and weighted shock indicator function. At each time step t, the weighted spike indicator functions (WSIF) are sorted so that the word with the highest WSIF corresponds to the top time series, the words with the second-highest WSIF corresponds to the second time series, and so on. Vertical ticks along the bottom mark fluctuations in the word occupying ranks 1 and 2 of WSIF values. Top panels present the ranks of WSIF values for words in the top 5 WSIF values in a given time step for the sub-sampled period of 60 days. An interactive version of this graphic is available at the authors’ webpage: http://compstorylab.org/shocklets/ranked_shock_weighted_interactive.html