A realistic map of scientific thought

Tracking citation data (i.e., which papers cite which other papers) has traditionally been the method for understanding the interconnectivity of different fields and subfields of research. But in the age when most researchers access their information online, the printed word can sometimes be years out of date. In a paper published this week in Public Library of Science ONE (PLoS ONE), Johan Bollen of the Los Alamos National Laboratory...

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