Before revision:  Then, we constructed a very large interaction graph of 9.3 million nodes and 169.9 million edges , where using graph analysis techniques  along with a game-theoretic centrality measure  , we quantify the influence of all Twitter accounts on the overall information exchange as is defined by the retweet cascades.
After revision:  Then, we constructed a very large interaction graph of 9.3 million nodes and 169.9 million edges , where using graph analysis techniques along with a game-theoretic centrality measure . Then , we quantify the influence of all Twitter accounts on the overall information exchange as is defined by the retweet cascades.