Fig. 1
From: Cities and countries in the global scientist mobility network
Creating the mobility network from MEDLINE publications. The scientific publications by a single author are illustrated as a sequence of green circles from top to bottom. Each publication has a time (in rows) and location (in columns) associated with it. We take a buffer time (i.e. 5 years) before and after a candidate move from Boston (B) to Chicago (C) in 2004. In this example, we identify Boston as the source, since it is the longest sequence within the window and closest to the end of the move year. Similarly, the destination is Chicago since it is the only observed city in the second window. Each move is tracked in a similar way and added to the mobility network by incrementing the edge weight accordingly