Help:SMW extensions
This page gives an overview of extensions that have been specifically developed for Semantic MediaWiki, and which are based on its semantic core functionality. An alternative list is given by the mediawiki.org category for SMW extensions. As for all extensions, the respective authors should be contacted for support.
Contents |
Adding and modifying data
Semantic Forms
Semantic Forms allows for the creation of forms to add and edit wiki pages, using the fields within the page's MediaWiki template calls as the fields of the form. All semantic data is meant to be held within templates, and not directly within wiki pages. Templates assign a semantic property to some or (preferably) all of their fields; the type of each semantic property helps determine what sort of input will show up for that field in the form. Data autocompletion is also enabled, as are a variety of other features. Forms can additionally be used for querying the wiki's data.
Authors: Yaron Koren, Stephan Gambke and others
First Released: May 2007
Links:
Semantic Image Input
Semantic Image Input is an extension that allows you to add images from the Wikipedias and Wikimedia Commons via an input type provided to Semantic Forms.
Author: Jeroen De Dauw
First Released: November 2011
Halo
Halo enhances SMW by providing intuitive graphical interfaces that facilitate the authoring, retrieval, navigation and organization of semantic data in SMW.
It basically comprises:
- Semantic Toolbar, allowing to quickly inspect, create and alter the semantic annotations of a wiki article
- Advanced Annotation Mode, for annotating contents semantically in a WYSIWYG-like manner without having to cope with the wiki source text
- Auto-completion, suggesting entities or data existing in the wiki while typing (e.g. when annotating in the wiki-text or filling in input fields)
- Graphical query interface, empowering users to easily compose queries and preview query results with different output formats
- Ontology browser, enabling intuitive browsing and changing of the wiki's ontology and lookup of instance and property information
The pre-configured and ready-to-use bundle of the Halo extension (including MediaWiki, Semantic MediaWiki and other useful extensions) is also known as SMW+.
Authors: ontoprise GmbH and others
First released: October 2007
Links:
Rule Knowledge
The Rule Knowledge extension provides a graphical editor for creating logical rules. Rules allow you to state complex interrelations and can be exploited for inferring knowledge (via a connected triple store). The extension supports the authoring of calculation, definition and property chaining rules.
Authors: ontoprise GmbH
First released: December 2009
Collaboration extension
The Collaboration extension enables the commenting and rating of wiki articles. Comments can be managed and retrieved via semantic queries.
Authors: ontoprise GmbH
First released: December 2009
WYSIWYG
The WYSIWYG extension (based on the FCKeditor) provides a WYSIWYG editor for authoring rich text contents. It enables the insertion of semantic annotations (in the rendered article), but also the convenient creation of dynamic content by embedding templates, web service calls or semantic queries.
Author: ontoprise GmbH and others
First released: April 2009
MetaVidWiki
MetaVidWiki lets users annotate, and browse through, Semantic MediaWiki data applied to subsections of online videos.
Author: Michael Dale
First released: March 2008
Semantic Forms Inputs
Semantic Forms Inputs defines additional input types for Semantic Forms.
Author: Stephan Gambke
First released: September 2009
Semantic Forms Select
SemanticFormsSelect generates a select form element inside Semantic Forms. The values for the select element are generated before form loading or retrieved through ajax call after form loading. The values are ultimately from a Semantic Query or a parser function.
Author: Jason Zhang
First released: January 2012
Semantic Signup
Semantic Signup lets users populate their user pages at registration time, using Semantic Forms.
Author: Serhii Kutnii
First released: January 2009
Semantic Social Profile
Semantic Social Profile represents social information of Social Profile extension as semantic annotations that are stored on a user’s userpage.
Author: Yury Katkov
First released: May 2011
Semantic Glossary
Semantic Glossary lets you define terms and abbreviations together with a definition. Whenever a term or abbreviation is hovered over in an article its definition is displayed.
Author: Stephan Gambke
First released: May 2011
SemanticQueryRDFS++
SemanticQueryRDFS++ extends the modeling language (SMW-ML) and the query language (SMW-QL) of SMW with
- negation and cardinality in query
- inverse property in modeling
- transitive, functional, inverse functional, symmetric properties in modeling
- domain and range inference for properties in modeling
Author: Jie Bao
First released: Dec 2010
Searching and browsing
Note that the Halo, Semantic Forms and MetaVidWiki extensions could also be fit into this section.
Enhanced Retrieval
Enhanced Retrieval is based on 'Solr' and provides a powerful search engine for your wiki. It comes with auto-completion, spell-checking ("did you mean" feature) and advanced search functionalities such as fuzzy and path search. The search covers full text contents (also from uploaded PDF and Word documents) as well as elements from the ontology, presenting the results on a unified interface.
Author: ontoprise GmbH and others
First released: February 2009
Frequent Pattern Tag Cloud
Frequent Pattern Tag Cloud displays tag clouds for the values of different semantic properties. It can also modify MediaWiki's own search functionality to use this information.
Authors: Tobias Beck and Andreas Fay
First released: August 2011
Semantic Drilldown
Semantic Drilldown provides a drill-down/"faceted browser" interface for viewing the data in a wiki. The list of pages in each top-level category can be viewed, and for each such category, filters can be created that cover a specific semantic property. If filters exist for a category, users can click on the different possible values for those filters, narrowing the set of results, and thus drill down through the data.
Author: Yaron Koren
First released: December 2007
Links:
- Example of a drilldown for presentations at Technical Presentations
- List of sites that use Semantic Drilldown
Semantic Gardening
Semantic Gardening allows you to detect inconsistencies (such as schema level violations) or peculiarities in your wiki's semantic data via automatic bots. Furthermore it provides an import and export functionality for OWL ontologies.
Author: ontoprise GmbH
First released: April 2009
Semantic Web Browser
Semantic Web Browser provides a new special page that lets you browse both the wiki's own data and related RDF data from outside, in the same place.
Authors: Benedikt Kämpgen, Anna Kantorovitch and Denny Vrandecic
First released: October 2011
Links:
SolrStore
SolrStore is a new provider of searches for Semantic Mediawiki. You can search your semantic properties with the power of a fulltext search engine (lucene), by defining custom search forms.
Authors: Simon Bachenberg, Stephan Gambke, Sascha Schüller
First released: December 2011
TreeView
TreeView displays a hierarchical view of wiki elements of your choice such as categories, articles or semantically annotated data contained in the wiki. With Semantic Treeview you define once your navigation structure or index and then let it take care of the automatic tree population. The tree will be displayed along side the actual wiki page.
Author: ontoprise GmbH
First released: February 2009
Displaying data
Semantic Result Formats
Semantic Result Formats adds a large number of further formats to inline queries, including formats for calendars, timelines, charts, filterable results, graphs and mathematical functions.
(Note that the SMW+ version of Semantic Result Formats contains some additional charting formats.)
Authors: Jeroen De Dauw, Frank Dengler, Steren Giannini, Fabian Howahl, Yaron Koren, Markus Krötzsch, David Loomer, Rowan Rodrik van der Molen, Joel Natividad, Denny Vrandecic, Nathan Yergler, Daniel Werner
First released: August 2008
Links:
- Example of timeline format - Conferences historical timeline on TechPresentations.org
- Example of calendar format - Opinion calendar on Discourse DB
- Example of graph format - RFC updates/obsoleteness graph on TechPresentations.org
- Example of filtered format - Filterable templated list on AroundIsleofWight.info
Semantic Maps
Semantic Maps allows for using various map services for two purposes: to display a set of pages on a map using an #ask query, based on some property they all share of type Geographic coordinate; and as an input within a Semantic Forms form to let users enter such a value. (Display of individual points is done by Semantic Maps' sibling extension, Maps). Multiple mapping services are supported (see list), which include Google Maps, OpenLayers, Google Earth, OpenStreetMap and Yahoo! Maps.
Authors: Jeroen De Dauw, Yaron Koren and others.
First Released: July 2009
Links:
Semantic Compound Queries
Semantic Compound Queries provides a parser function for displaying multiple queries at the same time, such as within a calendar or a map.
Author: Yaron Koren
First released: November 2008
Links:
- A Google Map showing two different kinds of points, with a different marker for each
- A calendar showing political editorials, color-coded by the candidate they support
Semantic graph extensions
Semantic graph extensions provides a set of parser functions for displaying graphs from the semantic and non-semantic relationships of a Semantic Mediawiki with functional integration with the Semantic forms extension. Graph representations include e.g. dot map, freemind (mindmap) map and hypergraph visualizations.
Author: Rob Challen
Semantic Project Management
Semantic Project Management adds two new formats to existing inline queries to display and export project structures.
Authors: Frank Dengler and Jonas Bissinger
First released: November 2010
Semantic Incoming Properties
Semantic Incoming Properties provides a parser function, #iask, which displays a list of incoming semantic properties to a specific page. Incoming semantic properties are simply properties on other pages which point to the specific page.
Authors: Hertzog, MWJames
First released: January 2010
Storing additional data
Semantic History
Semantic History tracks revisions of a wiki and enables their translation into semantic forms so that they can be better queried and represented. The current version offers the follows functionalities:
- Capturing edit revisions (editing, deletion, undeletion and moving) and representing them as SMW scripts (via additional templates)
- Enabling parsing of editing summaries into SMW scripts.
Author: Jie Bao and Li Ding
First released: September 2009
Semantic Internal Objects
Semantic Internal Objects provides a parser function that allows for flexible storage of so-called "n-ary relations" within pages.
Author: Yaron Koren
First released: August 2009
Semantic Extra Special Properties
Semantic Extra Special Properties adds some extra special properties to all content pages in the wiki, e.g. like "Contributing users", "User that first created a page", "Current revision ID", etc.
Author: Rotsee
First released: November 2011
JSON
JSON Extension introduces a "json" parser function to simplify modeling data with nested structure using the JSON syntax.
Author: Jie Bao
First released: May 2012
Storing data via an RDF triplestore
See here for one comparison of these extensions. Note that this functionality is also available in Semantic MediaWiki itself - see Help:Using SPARQL and RDF stores.
LinkedWiki
LinkedWiki allows for storing SMW data via the 4store RDF triplestore, and for calling SPARQL queries on that and other data from within the wiki.
Author: Karima Rafes
First released: September 2010
RDFIO
RDFIO allows for storing SMW data via the ARC2 RDF triplestore, and for importing data from other RDF sources directly into the wiki.
Authors: Samuel Lampa, Denny Vrandečić
First released: July 2010
SparqlExtension
SparqlExtension allows for storing SMW and Semantic Internal Objects data via the Jena RDF triplestore, and for calling SPARQL queries on that and other data from within the wiki.
Authors: Alfredas Chmieliauskas, Chris Davis
First released: May 2010
Triple Store Connector
The Triple Store Connector allows to use a triple store as semantic data backend. With a linked triple store you can benefit from its advanced reasoning functionality and query the wiki knowledgebase via SPARQL (from remote). The following connectors can be obtained:
- TripleStoreConnector Professional including Ontobroker (commercially available, better scalability and expressivity)
- TripleStoreConnector Basic including Jena (for free)
Author: ontoprise GmbH
First released: February 2009
Protecting data
Access Control List
Access Control List is a powerful extension for protecting single wiki pages, articles in categories or namespaces and values of semantic properties. Access can be restricted for individual users or entire user groups. An intuitive GUI allows easy administration of access rights and user groups. It can also be connected to an external LDAP server and re-use the users and groups defined there.
Author: ontoprise GmbH and others
First released: October 2009
Semantic Access Control
Semantic Access Control provides Group based access control. Access control is defined in template as internal object.
Author: Jason Zhang
First released: January 2012
SemanticACL
Semantic ACL allows read and edit restrictions to be set on pages using SMW properties.
Author: Andrew Garrett
First released: May 2011
Awareness and workflow
Semantic Notifications
Semantic Notifications keep you informed about changes in your semantic data by sending notifications via email. This extension complements MediaWiki's 'watch page' functionality, which allows only to watch single pages, but no data scattered across several pages.
Author: ontoprise GmbH
First released: April 2009
Semantic Tasks
Semantic Tasks allows for having reminder and notification emails sent to relevant users for pages that represent tasks. The dates and users are specified through special semantic properties.
Author: Steren Giannini
First released: June 2008
Semantic Watchlist
Semantic Watchlist enables users to watch semantic properties by adding a new watchlist page that lists changes to these properties. Users can choose to follow one or more watchlist groups, which are administrator defined, and cover a set of properties and a set of pages (category, namespace, or SMW concept). Notification of changes to watched properties is also possible via email.
Author: Jeroen De Dauw
First released: July 2011
Importing data
Note that the Semantic Result Formats extension (the 'exhibit' format) could also be fit into this section.
Data Import
The Data Import extension enables users to integrate external data into the wiki in two different ways. First, the Web Service component allows to call external SOAP or RESTful web services from within the wiki and embed the results in wiki pages. Second, the Term Import framework allows to import data (e.g. data from CSV files or emails) as wiki articles.
Author: ontoprise GmbH
First released: April 2009
Data Transfer
Data Transfer provides special pages for viewing the data from, and importing data into, a wiki. Viewing/exporting is done via XML, while importing can be done via either XML or CSV; in either case, the fields are defined by fields within template calls on each page. Data Transfer uses semantic properties to a very limited extent, but it is considered an SMW-related extension because it takes the same template-based approach to data as Semantic Forms, and is meant to be used in conjunction with that extension.
Author: Yaron Koren
First released: February 2008
Links:
- Main "View XML" panel and XML for all project pages at Verwaltungskooperation (German-language)
External Data
External Data allows wiki pages to get data from various external sources, and use it on the page. The sources can be external URLs that contains data in XML, CSV or JSON formats; LDAP servers; or relational databases (provided one has the password). This allows, among other things, one Semantic MediaWiki-based site to use the semantic data from another, by using the CSV format of inline queries. Information retrieved in this way can also be stored semantically, both for individual values and (using the Semantic Internal Objects extension) tables of values.
Authors: Yaron Koren, Michael Dale and David Macdonald
First released: January 2009
Links:
Rich Media
Rich Media allows the easy upload and embedding of media files such as documents, images, videos and audio files into the wiki. Media files can be attached to related articles, thus preserving the context of the files. Furthermore a meta-data set is provided, which can be used for querying uploaded media files.
Author: ontoprise GmbH
First released: April 2009
Exporting data
Note that the Data Transfer and Semantic Result Formats extensions (the 'bibtex', 'icalendar' and 'vcard' formats) could also be fit into this section.
RDFa
The RDFa extension modifies the display of property values on pages to include RDFa, which can then be read by search engines and other tools.
Authors: Jin Guang Zheng, Jie Bao
First released: September 2009
Utilities
Semantic Tagbox
Semantic Tagbox adds a "tag box", similar to the category box, for one global specified property, to be displayed at the bottom of each page.
Author: James Hong Kong
First released: January 2012
SemanticUpdateOnPurge
SemanticUpdateOnPurge updates all of one pages semantic data created with Semantic MediaWiki when purging that page. Without this extension only the page is re-rendered so the updated displayed data might not be identical to the properties data stored internally.
Author: Daniel Werner
First released: March 2010
Obsolete or discontinued extensions
FolkTagCloud
This extension was replaced by the 'tagcloud' format in Semantic Result Formats.
FolkTagCloud Adds an SMW property for tagging wiki pages with user-defined labels and a parser tag for displaying these "FolkTags" in a tag cloud.
Author: Katharina Wäschle
Life span: ??
Freebase
The Freebase extension enables you to query Freebase using conventional SMW inline queries. Note that this extension cannot be used to query or modify Semantic MediaWiki's own data.
Author: Basil Ell
Life span: September 2009 - September 2010
Links:
Question API
Question API creates a special page that lets a wiki determine the veracity of a set of data before adding it to the wiki. If administrators have an automated source of information they want to add as semantic data to the wiki, but want to make sure that each piece of information is correct, they can pass the data in to Question API; the system phrases each piece of information as a yes/no question, and if a user clicks to indicate the information is correct, the system adds this piece of data into the wiki.
This experimental extension was used for exploring possibilities of supervised information extraction in (semantic) wiki. It was discontinued after completing these experiments.
Authors: Sebastian Blohm, Markus Krötzsch
First released: November 2007
Semantic Calendar
This extension was replaced by the 'calendar' format in Semantic Result Formats.
Semantic Calendar allows for the creation of calendars that display the names of pages by their value for a specified semantic date property, filtered by some set of pre-specified criteria.
Author: Yaron Koren
Life span: February 2008 - December 2008
Semantic Gallery
This extension was replaced by the 'gallery' format in Semantic Result Formats.
Semantic Gallery defines a "gallery" format for inline queries, to display images.
Author: Rowan Rodrik van der Molen
Life span: December 2008 - March 2010
Semantic Google Maps
This extension was replaced by Semantic Maps.
Semantic Google Maps allows for the use of Google Maps for three purposes: (1) to display a single point of type Geographic coordinate on a page, (2) as an input within a Semantic Forms form to let users enter such a value, and (3) to display a set of pages on a map using an #ask query, based on some property they all share of type Geographic coordinate.
Authors: Robert Buzink and Yaron Koren
Life span: September 2007 - July 2009
Semantic Layers
This extension was replaced by Semantic Maps.
Semantic Layers provides for viewing a set of geographical or other coordinate data within a map, using the OpenLayers protocol.
Author: Matt Williamson
Life span: September 2007 - July 2009
Semantic NotifyMe
Semantic NotifyMe sends notifications via email whenever the results of any of a given set of queries change.
Authors: Ning Hu, Justin Zhang, Jesse Wang
Life span: December 2009 - November 2010
SemanticQueryFormTool
SemanticQueryFormTool provides a tool to support the generation of user-friendly query forms for semantic data.
This extension does not work with SMW 1.6 or higher, or MediaWiki 1.17 or higher.
Author: G. Zehetner
Life span: September 2008 - June 2011
Links:
SMW OntologyEditor
The SMW OntologyEditor is an extension of Semantic MediaWiki and was developed as part of the ACTIVE project (http://www.active-project.eu/) in order to enable the development of lightweight ontologies. The focus of the editor is to provide an easy understandable interface to develop ontologies and to ensure consistency of the knowledge base by providing a set of knowledge repair algorithms. The main features are:
- Development of lightweight ontologies (vocabularies, categories, properties, elements)
- Import/export of OWL/XML files and folksonomies
- Knowledge repair algorithms (errors, redundancies, inconsistencies)
Authors: ACTIVE Team STI Innsbruck
Life span: January 2010 - October 2010
Links:
