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Data Sets

This page contains various data sets that we have used for our research. All these data are free for scientific use. Each dataset contains a readme file with additional information. If you make use of any of these data, please cite the source.

Network Data:

• World citation and collaboration networks: Weighted networks of citations and collaborations between countries and the cities. The collaboration network is undirected and an edge connects two places (country/city) if the authors from these places are co-authors in a publication. The citation network is however directed and an edge represents that the author from one place cites the author from the other place. Publications in the ISI dataset between 2003-2010 were used to construct these networks.
  Please cite R.K. Pan, K. Kaski and S. Fortunato Scientific Reports 2, 902 (2012).
• PACS networks: Yearly weighted networks of PACS codes. Edge between PACS codes represent that they appeared in the same article. All Publications in APS journals between 1985-2009 were used to construct these networks.
  Please cite R.K. Pan, S. Sinha, K. Kaski and J. Saramaki, Scientific Reports 2, 551 (2012).
• arXiv collaboration network: Weighted network of coauthorships between scientists publishing in arXiv till March 2010. Articles with more than 10 authors were ignored while constructing the network.
  Please cite R.K. Pan and J. Saramaki, Europhys. Lett. 97, 18007 (2012).
• APS collaboration network: Weighted network of coauthorships between scientists publishing in APS journals between 1893 to 2009. Articles with more than 10 authors were ignored while constructing the network.
  Please cite R.K. Pan and J. Saramaki, Europhys. Lett. 97, 18007 (2012).

Other Data:

• Update and processing time of papers: Distribution of the update time (number of days between submission and final update) of articles in arXiv and publication time (number of days between submission and publication) of papers in APS journals. All submission to arXiv between Jan 1995 - Mar 2010 and all publications in APS journals between Jan 2000 - Dec 2009 were used to construct these distributions.
  Please cite H.-H. Jo, R.K. Pan and K. Kaski, Phys. Rev. E 85, 066101 (2012).

Don't hesitate to contact me if you have questions or comments about the datasets.

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Last modified: January 6, 2013

Raj Kumar Pan, rajkumar.pan AT aalto.fi