Figure 2

Retweet network constructed from the Twitter_Covid dataset. To visualize the network, we filter nodes and edges using k-core decomposition [58] (\(k=3\)). Colors represent credibility score: orange and purple for high- and low-credibility accounts, respectively, and gray for unlabeled accounts. Node size represents in-strength, i.e., the number of retweets by the account. Large purple nodes are known misinformation super-spreaders