Citation Statistics From More Than a Century of Physical Review
نویسنده
چکیده
We study the statistics of citations from all Physical Review journals for the 110-year period 1893 until 2003. We discuss basic properties of the citation distribution and find that the growth of citations is consistent with linear preferential attachment. We also investigate how citations evolve with time. There is a positive correlation between the number of citations to a paper and the average age of citations. Citations from a publication have an exponentially decaying age distribution; that is, old papers tend to not get cited. In contrast, the citations to a publication are consistent with a power-law age distribution, with an exponent close to −1 over a time range of 2 – 20 years. We also identify one exceptionally strong burst of citations, as well as other dramatic features in the time history of citations to individual publications.
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Citation Statistics from 110 Years of Physical Review
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