WikiTrust

WikiTrust is an open-source MediaWiki extension that computes the origin and author of every word of a wiki, as well as a measure of text trust that indicates the extent to which text has been revised. To use WikiTrust, you click on a special wiktrust tab added by the extension. In the resulting view, the portions of a page that changed recently appear with orange background; the more intense the orange color is, the less the change has been revised. By clicking on any word, you can determine who inserted the word, and you can examine the precise context in which the word was inserted. U2) As a Mediawiki extension, where the Mediawiki code, and the WikiTrust code, are installed on separate servers, for scalability and separation of concerns. This is an advanced installation type; you can find some instructions on README-WMF, but we are still working on the documentation. If you have just downloaded WikiTrust, this is most likely not the mode of use that suits your needs. We also acknowledge the contributions of: Krishnendu Chatterjee ([email protected]) Vishwanath Raman ([email protected]) Gillian Smith Marco Faella ([email protected]) Jason Benterou We describe in this README file the use of WikiTrust as a MediaWiki extension. For other uses of WikiTrust, see the other README files. Install mysql and mediawiki. In Ubuntu / Debian, you can install the packages: First, use the package manager of linux to install the development library for mysql. On Ubuntu or Debian, this is package libmysqlclient16-dev 2a) You need to install some packages for Ocaml. There are two ways. Get godi from and download godi. Follow the instructions to install it. IMPORTANT: Remember to set the path correctly as instructed in the godi instructions, and remember to have it set correctly before you install any additional Ocaml packages. Otherwise, the packages might get installed in the wrong places. 2a2) If you do not wish to use godi, you can get the above packages either from their source, or from the linux distribution you are using. For Ubuntu or Debian, you can use the following packages: ocaml (version 3.10.0 or greater) ocaml-base ocaml-native-compilers libextlib-ocaml-dev ocaml-findlib libjson-static-camlp4-dev libjson-wheel-ocaml-dev libmysql-ocaml libmysql-ocaml-dev python-mysqldb libocamlnet-ocaml libocamlnet-ocaml-bin libocamlnet-ocaml-dev libpcre-ocaml-dev libsexplib-camlp4-dev libtype-conv-camlp4-dev libxml-light-ocaml-dev libzip-ocam libzip-ocaml-dev This creates an eval online wiki executable, which is what computes text trust and origin, and author reputation, in a wiki. The executable is called whenever someone edit the wiki, or wishes to see a trust-colored version of a page. 3) You should activate the extension by editing the file LocalSettings.php (part of the MediaWiki installation), adding the following lines: You can look in WikiTrust.php (located at WikiTrust/WikiTrust.php) for a list of all the configurable variables. The defaults should be correct for most installations, but you can override values by placing assignments in your LocalSettings.php before the require once() call for the WikiTrust extension. 4) You need to make the installation readable from the web server. Be careful not to give access to the web server to the other files, as there may be obscure security issues associated with, for instance, your web server having access to the .git directory (if you got wikitrust via git). 5) You need to create the database tables that the trust coloring extension will use. Assuming that the mediawiki database is called "wikidb" (this is the default name: you give a name to the database when you create the wiki instance during the MediaWiki installation process), proceed as follows: $ cd sql $ ./create db.php "path to mediawiki" "mysql root user name" remove $ ./create db.php "path to mediawiki" "mysql root user name" You can then give the command many times, until all the wiki is analyzed. You can al