Quantifying the cognitive extent of science

作者：

Highlights：

• We present a big-data method to quantify the cognitive extent of scientific literature.

• This new metric of science is entirely independent from publication volumes.

• The cognitive extent in physics and astronomy has been expanding rapidly since 1960s.

• Small research teams cover greater cognitive extent than large teams in fields studied.

摘要

•We present a big-data method to quantify the cognitive extent of scientific literature.•This new metric of science is entirely independent from publication volumes.•The cognitive extent in physics and astronomy has been expanding rapidly since 1960s.•Small research teams cover greater cognitive extent than large teams in fields studied.

论文关键词：Growth of science,Cognitive extent,Collaboration,Team science,Big science

论文评审过程：Received 22 June 2015, Revised 22 October 2015, Accepted 22 October 2015, Available online 19 November 2015, Version of Record 19 November 2015.

论文官网地址：https://doi.org/10.1016/j.joi.2015.10.005