Figure 4
From: A coevolving model based on preferential triadic closure for social media networks
Comparing the properties of the model network with that of the empirical networks.
The model parameters are the same as in Fig. 3. Results are averaged over 10 realizations. Numerical experiments have also been carried out for other parameters and the results are qualitatively the same. The empirical networks are at the final stage in the data collecting window. In the Flickr network, the total users and photos are about 3.7 × 105 and 1.1 × 107, respectively. 〈kout〉 = 〈kin〉 = 50.9, 〈kf〉 = 91.7, 〈kp〉 = 3.1. In the Epinions network, the total users and reviews are about 8.7 × 104 and 1.2 × 106, respectively, where 〈kout〉 = 〈kin〉 = 9.46, 〈kf〉 = 159.9, 〈kp〉 = 11.8. (a)–(b) The degree distributions. (c)–(d) The correlations between different types of degrees associated with the same users in static network. (e)–(f) Characterizing the mean growth rate r and standard deviation σ for favorite degree. For the model network, t0 = 90,000 and t1 = 100,000. For the empirical networks, t1 is the final day in the data collecting window and t0 is the date about 90 (400) days before t1 for the Flickr (Epinions) network.
