A few good papers

Finding high quality articles from PLOS

Today I had to find a great research article for journal club. I wanted something influential and topical. PLOS made me happy by posting article level statistics as an excel file. I analyzed the data and produced a list of articles that were more cited than expected. They look interesting, so I am sharing them here. Enjoy!

Plos Papers with higher than expected citations before 2009

I did not know whether to use page views or citations as measure of influence. When I plotted them against each other it became clear that lots of citations implied lots of page views, but lots of page views did not imply lots of citations. I wanted articles that had both, so I used citations as my measure.

Articles are cited more over time, but I did not want to bias toward older articles. So I determined the best fit line for number of citations vs date and then used that to calculate the expected number of citations for a given date.

Last, I divided the observed number of citations by the expected number of citations for a given date. Unfortunately, the newest papers in the data set all appeared at the top of the list. This is because there is a low expected number of citations for recent papers and therefore noise is amplified. To correct for this, I eliminated all of the papers that appeared after 2008.

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