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Christina's LIS Rant
Saturday, October 11, 2008
  Community detection in co-authorship networks
Wow - this paper uses a lot of the same techniques (and the same algorithm) I use in my IEEE eScience conference paper (details and pre-print to follow, probably not 'til the beginning of November though).

Rodriguez, M. A., & Pepe, A. (2008). On the relationship between the structural and socioacademic communities of a coauthorship network. Journal of Informetrics, 2(3), 195-201. DOI:10.1016/j.joi.2008.04.002

They are looking at a large multi-institution, multi-disciplinary NSF research center. They want to know if the communities - areas that are more connected to each other than to the rest of the network - detected in the co-authorship network using several standard algorithms correspond to any of these characteristics of the authors
I would like to have seen some other characteristics - but this is what was available (actually, come to think of it, how did they know country of origin? not stated - ew... seems problematic).

So then they did a contingency table and found the chi-squared. Turns out that department and affiliation are the only statistically significant characteristics -- that seems pretty obvious. I'm sort of glad the country of origin isn't. I think the characteristics seem a bit weak, but I like the general idea of the article. I'd like to see more things like gender, and a more granular representation of their discipline (so biology isn't enough, but what type of biology or maybe what lab or research group, too).
 
Comments:
hello Christina,
thanks for your post.

a couple of remarks:
"Country of origin" of all 291 researchers in the study was found by analysis of available records (e.g. NSF annual reports) as well as analysis of their personal websites.

"Gender" is a node attribute that we study as well, but was not included in this article.
 
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This is my blog on library and information science. I'm into Sci/Tech libraries, special libraries, personal information management, sci/tech scholarly comms.... My name is Christina Pikas and I'm a librarian in a physics, astronomy, math, computer science, and engineering library. I'm also a doctoral student at Maryland. Any opinions expressed here are strictly my own and do not necessarily reflect those of my employer or CLIS. You may reach me via e-mail at cpikas {at} gmail {dot} com.

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Christina Kirk Pikas

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