872908.fig.006a
(a)
872908.fig.006b
(b)
Figure 6: (a) The number of comments 𝑋 ( 𝑡 ) for a piece of news as the function of time. (b) The distribution of news lifetime, which follows a power-law with slope = 1.4. All the results are the average over 69440 pieces of news, which have been commented on.