I’ve recently got in touch with an amazing group, the Thesys Group. They invited me to their HQ to show me what kind of projects they are working on and we started a bit of brainstorming about what we could come up with together.

In our first project, the Thesys Group analyzed the network of discussions focusing on one of the most popular medical Twitter hashtags, MD_chat. In the figure below, a dot represents a Twitter user, lines connecting the dots represent their relationship. The bigger the dot is, the more tweets the Twitter user had. The thicker the line is, the more tweets the two users had with each other. Based on this, here is the network graph (click on the image below to access the interactive graph):

Dots in the middle account for active users, while dots in the periphery did not participate that often in…