- 1 My work
- 2 Links
- 3 Conflict of Interest Statement
- 4 See also
- 5 Reference
On Wikipedia and sister projects
I have been active on the English and Danish versions of Wikipedia, with the first English Wikipedia entry August 23 2002 and the first Danish February 11 2002.
Among the articles I have added to are non-negative matrix factorization, ratio distribution, intraclass correlation, Niels A. Lassen, John Lykoudis and 5-HTTLPR. My English edits have usually been related to my work. On the Danish Wikipedia I usually write articles that are not related to my work. I also take photos for Wikimedia Commons. Most photos have been of Copenhagen and suburbs.
My edit activity can be visualized with the WikiChecker.
I am a member of Wikimedia Denmark, and presently is a member of the board. I have been at Wikimania in Alexandria, Gdansk and London.
On the Toolserver I had a online visualization service called revvis. Enabled for the Danish Wikipedia, it shows the sequential collaboration network for a Wikipedia article.
Research on Wikipedia
I participated in WikiSym 2006 in Odense and had a short talk in the workshop about Wikipedia research organized by Jakob Voß and Angela Beesley. The slides used for the presentation are available from the department archive: Non-negative matrix factorization decomposed a article-by-author data matrix for identification of clusters of authors and articles.
Scientific citations in Wikipedia
In 2007 I looked at the outbound citations from Wikipedia (using Template:Cite journal) to scientific journals. Nature and Science were the most cited. I compared the number of citations with citation information from Journal Citation Reports of Thomson Scientific, and the correlation between the two sets of values was not bad, e.g., when a scientific journal had many citations it tended to also have many Wikipedia citations. An updated scatter plot for the July 2007 database dump is available .
I also tried to cluster scientific journals and Wikipedia articles and made a longitudinal comparison of the citation information. This is described in Clustering of scientific citations in Wikipedia.
Wiki for representing and computing with scientific data
I am experimenting with representing scientific data in a wiki-like environment. My first attempt was a spreadsheet link online service for personality genetics. It is available from:
I now mostly work with the "Brede Wiki".
This MediaWiki-based wiki can represent spreadsheet-like data and meta-analysis is presently performed with an online script.
Review of Wikipedia research
Since 2008 I have been writing a review on Wiki and Wikipedia research entitled Wikipedia research and tools: Review and comments. I now collaborate with fellow researchers (Chitu Okoli and others) on the Internet to summarize and review Wikipedia research. We presently have a long working paper entitled The people's encyclopedia under the gaze of the sages: a systematic review of scholarly research on Wikipedia, see at http://ssrn.com/abstract=2021326 . We maintain the data for the review on a Semantic MediaWiki at http://wikilit.referata.com. The setup of this wiki was inspired by WikiPapers (http://wikipapers.referata.com) at and my Brede Wiki.
I have also written a popular science overview of Wikipedia research in Danish: Wikipedia - nørdernes sejr over vandalerne?.
I maintain blogs where I sometimes write posts relating to Wikipedia. These may be opinionated or related to my work. I was originally writing from Posterous, but as this is closed down Wikipedia posts from my blogs can be found here:
- http://fnielsen.tumblr.com/tagged/wikipedia (nothing here yet)
Examples of blog posts are:
- Hunting down the undead ghost of classical conductor George Richter — the story about an article about a conductor that I added to Wikipedia, but later was deleted as it turned out that he was ficticious.
- Sentiment analysis of Wikipedia pages on Danish politicians.
- "Blaming" tools:
- User edit counting:
- Overall statistics:
- User:fnielsen/Book:Music, example book
Conflict of Interest Statement
I am working or have been employed by:
I have received grants from:
- The Lundbeck foundation, - partial owner of Lundbeck.
- Villum Foundation associated with VELUX.
- Danish Research Councils.
- American research councils.
I received gifts associated with:
- Religion in communism in Sub-Saharan Africa in the 1960s. A podcast refered humorously to this page.