Description of the methods used to generate the image is available here.
“To map the network of citations, we imported the data into a Microsoft Excel spreadsheet running a social-network analysis extension called NodeXL. Citations erroneously discarded by Sitkis were entered manually into this spreadsheet.
To reveal a core network of citations among the primary authors, we filtered to exclude all connections where the scientists cited one another’s work less than four times, and drew the diagram so that its elements reflected the number and strength of the remaining links: the more citations, the larger the arrows; the more incoming links, the larger the node representing that scientist. Finally, we adjusted the layout manually to most clearly show any differences in the network based on author location.
There were 43 scientists in the network, 24 from the US and 19 from elsewhere. All but two researchers – one in the US and one in Germany – connected to Shinya Yamanaka of Kyoto University in Japan, the pioneer of cellular reprogramming, but non-US scientists had no other links among themselves. The US side of the diagram showed a richer network of links, with 33 connections among 17 scientists. Seven of the non-US scientists, including Yamanaka, connected with US-based researchers, making a total of 16 links. However, no scientist working in the US linked to any non-US scientist other than Yamanaka.” [Link]
Political discussions are obviously a major area of social media use. This talk explores the ways social network analysis and visualization can be applied to mapping discussions of political issues and topics. It features a number of NodeXL generated visualizations of twitter crowds and networks that form around topics like the conference hashtag #PDF2010 (and #PDF10) as well as political and current event relevant terms.
I was also interviewed by Deb Berman from JustMeans.com after the presentation to describe the NodeXL project a bit more:
Here are some sample images of NodeXL topic network maps from the talk:
2010 – June – 3 – NodeXL – Twitter – PDF2010: This map represents the connections among people who tweeted the term “PDF2010”. It illustrates the people in the “center” and the sub-clusters in the map. People who occupy “bridge” locations are visible as well.
2010 – June 1 – NodeXL – Twitter – #tcot: This is a map of the “Top Conservatives on Twitter” tag. It has a large dominant cluster and a tiny sub group of tcot critics.
2010 – June 1 – NodeXL – Twitter – #p2: The #p2 hashtag is used by “Progressive 2.0” discussions. It features a clear dominant cluster of supporters and a smaller cluster of skeptics made up largely of conservatives.
Outside the CUNY Graduate Center auditorium during PDF2010.
Clay Shirky’s talk was great: it wove together stories of collective action for good and trivial purposes that framed a call to increase the costs of political activity on the net rather than reduce as a way to improve the impact of contribution rather than their mere scale.
Howard Rheingold’s discussion with Micha Sifry was insightful, focusing on the ways the Internet can lull us into a lack of mindfullness. A Mindfull approach, Howard encourages, is one where we are not as easily pulled into random tangents and drift aimlessly from link to link and click to click.
The upcoming Enterprise 2.0 conference in Boston June 22-25 features several presentations of possible interest. George Dearing and I will both be on panels and, centrally, there is a presentation from Telligent co-founder Rob Howard about what is new at Telligent Systems:
Enterprise 2.0: Work, Productivity and ROI Today’s ever-changing workforce requires that enterprises tackle an array of shifting demands. Adapting to the various ways people collaborate and work together without actually being in the same place is now an organizational necessity, not just an option. Join us for this informative session as Rob Howard, Founder of Telligent and an innovator of online collaboration strategies, presents Enterprise 2.0 and social computing in the context of work, productivity and ROI. Enterprises that have embraced collaborative computing and analytics are realizing results in increased workforce productivity, expanded input and insight from customers and partners, and now have the ability to manage and report on the value of these efforts. Join us for this session and walk away understanding how you can prepare today for the future of work.
George Dearing from Telligent and I will both be on additional panels at the conference. I am looking forward to the chance to present along with Kate Niederhoffer from Dachis again; we presented at Web 2.0 on the topic of “Beyond Buzz: On Measuring a Conversation” which I think was well received. Details below:
For those in the Bay Area there is an event next week of particular interest to community managers, platform developers, researchers, marketers, and software developers: at the Computer History Museum in Mountain View on June 10th is the 2009 Online Community Unconference. This year 300-400 online community and social media professionals will attend with 50-60 collaborative sessions devoted to social media and online community topics.
“The Online Community Unconference is a gathering of online community practitioners – managers, developers, business people, tool providers, investors – to discuss experience and strategies in the development and growth of online communities.”
I attended last year and found it to be a valuable use of time: many practioners in the social media space will attend and some will self-nominate and present on a wide range of topics of relevance. I plan to be there again this year, hope to see you there!