Clickstream Data Yields High-Resolution Maps of Science
Intricate maps of science have been created from citation data to visualize the structure of scientific activity. However, most scientific publications are now accessed online. Scholarly web portals record detailed log data at a scale that exceeds the number of all existing citations combined. Such log data is recorded immediately upon publication and keeps track of the sequences of user requests (clickstreams) that are issued by a variety of users across many different domains. Given these advantages of log datasets over citation data, we investigate whether they can produce high-resolution, more current maps of science.
direct link to high res image:
Original article:
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0004803
h/t +Heikki Arponen
