Distributions for the inter-tweet delay and fitted power-laws.

<p>(a) Probability density function (PDF) for the inter-tweet delay of each class. The distributions were created using 100 logarithmically spaced bins between decades and . The power-laws fitted to the tails of the distributions have an exponent for personal accounts, for managed accounts, and for bot-controlled accounts. (b) The complementary cumulative distribution function (CCDF) for the inter-tweet delay in each class is shown along with the power-law distribution fitted to the tail. The full statistics of the power-law fits are presented in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0065774#pone-0065774-t002" target="_blank">Table 2</a>.