#acl All:read

Welcome to the ["UCSC Wiki Lab"] !
Our main project consists in studying author repuation and text trust on the Wikipedia. 

[[HTML(&nbsp;<br><font size=+2 color="red"> <b>This is an old site; please visit the <a href="http://wikitrust.soe.ucsc.edu/">new WikiTrust site</a>.</b></font>)]]   

WikiTrust is now able to analyze any wiki served by  [http://www.mediawiki.org MediaWiki] in real-time, as edits are made! 
'''[:WikiTrust: Get the code!]''' [[BR]]
WikiTrust is a [http:///www.mediawiki.org MediaWiki] extension.
Once it is installed, wiki visitors are presented with a '''trust tab''' at the top of each article. 
By clicking on the tab, visitors can examine the computed trust of the article text. 
The WikiTrust extension can be deployed both on brand-new wikis, and on existing ones; in the latter case, WikiTrust will first analyze existing content, and then it will process any edits in real-time, as the users enter them.  See WikiTrust for more details. 

[[HTML(&nbsp;<br><font size=+2 color="red"> <b><a href="http://wiki-trust.cse.ucsc.edu/">Wikipedia trust coloring demo</a></b></font>)]]

In the [http://wiki-trust.cse.ucsc.edu/ demo,] the text background of [http://www.wikipedia.org/ Wikipedia] articles is colored according to its trust. 
This demo consists of all Wikipedia pages as of the February 6, 2007, Wikipedia dump.
The demo has been produced using the ''batch'' portion of the WikiTrust tool. 

For other news, see the ["WikiTrust Blog"].
We also have a [http://groups.google.com/group/wikitrust WikiTrust discussion group] where you can give us suggestions or feedback; we also post to that group important announcements. 

== How is the trust computed? ==

[[Include(Trust_Computation)]]
The details of this procedure are described in the papers and talks mentioned below. 
The [:WikiTrust: code of WikiTrust] is available! 

== For further reading ==

[[Include(Publications and Talks)]]

== People ==

[http://www.soe.ucsc.edu/~luca Luca de Alfaro], [http://www.soe.ucsc.edu/~thumper B. Thomas Adler], [http://www.eecs.berkeley.edu/~c_krish Krishnendu Chatterjee],  [http://www.soe.ucsc.edu/~ipye Ian Pye], [http://www.soe.ucsc.edu/~vishwa Vishwanath Raman], Marco Faella

== Feedback, Blog, News ==

 * For general topics and discussion of Wikipedia Quality, please join the [http://lists.wikimedia.org/mailman/listinfo/wikiquality-l WikiQuality mailing list.]  Many Wikipedia people subscribe to this. 

 * For discussion of technical issues with the demo (pages that seem to be improperly colored, code issues, etc) you can join and post to the [http://groups.google.com/group/wikitrust WikiTrust mailing list.]  The list is read mostly by wikitrust developers. 

 * For bug reports, use the [http://code.google.com/p/wikitrust/issues/list wikitrust issue tracker.]

 * Curious about the news? '''Read the ["WikiTrust Blog"]!'''

==== Press Coverage ====

This research has been covered by many news sources, including CNN, The Associated Press, USA Today, [http://technology.newscientist.com/channel/tech/mg19526226.200-wikipedia-20--now-with-added-trust.html The New Scientist], Der Spiegel (Germany), [http://it.slashdot.org/article.pl?sid=07/08/31/0259224 Slashdot], Il Sole 24 Ore (Italy), [http://www.washingtonpost.com/wp-dyn/content/article/2007/08/07/AR2007080702191.html The Washington Post], The Times (of London), [http://technology.newscientist.com/channel/tech/mg19526226.200-wikipedia-20--now-with-added-trust.html Boing Boing], and more. Here is a nice [http://www.ucsc.edu/news_events/press_releases/text.asp?pid=1471 press release] from UCSC. 

==== Related Work ====

This work is part of the [http://quality.wikimedia.org/ Quality Initiative] sponsored by the [http://www.wikimedia.org/ Wikimedia Foundation.] 

The papers on the [http://www.soe.ucsc.edu/~luca/papers/07/wikiwww2007.html reputation] and [http://www.soe.ucsc.edu/~luca/papers/07/trust-techrep.html trust] systems contain references to relatd work on the topic.  
We have also gathered some [:Related Work:related work] that is not easily available from other sources. 

== Support ==

We gratefully acknowledge the support received from: 
 * [http://www.citris-uc.org/ CITRIS: Center for Information Technology Research in the Interest of Society], a University of California research center. 
 * [http://institutes.lanl.gov/isti/issdm/ Institute for Scalable Scientific Data Management], an educational collaboration between [http://www.lanl.gov/ LANL] and the [http://www.ucsc.edu/ University of California Santa Cruz (UCSC).]