Which cities around the world produce not just the most but the best scientific papers?
The circles in red plot lower performing cities and green for higher performing cities.
So a small green circle indicates a small high quality output and a big red circle indicates a high volume but lower quality output.
Quality of paper and its influence is determined by the number of citations - the more a paper is cited the more important it is.
The researchers were using data from Web-of-Science database http://en.wikipedia.org/wiki/Web_of_Science which is the largest accessible citation database with links to over 800.000.000 cited references.
Which cities around the world produce not just the most but the best scientific papers?
The circles in red plot lower performing cities and green for higher performing cities.
So a small green circle indicates a small high quality output and a big red circle indicates a high volume but lower quality output.
Quality of paper and its influence is determined by the number of citations - the more a paper is cited the more important it is.
The researchers were using data from Web-of-Science database http://en.wikipedia.org/wiki/Web_of_Science which is the largest accessible citation database with links to over 800.000.000 cited references.
For Physics:
http://www.leydesdorff.net/topcity/figure1.htm
For Chemistry:
http://www.leydesdorff.net/topcity/figure2.htm
For Psychology:
http://www.leydesdorff.net/topcity/figure3.htm