686:, or some database directly populated by the tool that withdraws the semantics from the raw data. Separate versioning support or correction editing for the formalized content may also be provided. Provenance support for the formalized content, that is, tagging the author of the data separately from the data itself, varies.
597:, made the use of Semantic MediaWiki available for all their wikis on request, thus allowing all the wikis they hosted to function as semantic wikis. However, since upgrading to version 1.19 of MediaWiki in 2013, they have stopped supporting Semantic MediaWiki for new requests on the basis of performance problem.
689:
What data can get formalized also varies. One may be able to specify types for pages, categories, or paragraphs or sentences (the latter features were more common in pre-web systems). Links are usually also typed. The source, property, and target may be determined by some defaults, e.g. in
Semantic
498:
relationship. The wiki would thus be able to automatically generate a list of fruits, simply by listing all pages that are tagged as being of type "fruit." Further semantic tags in the "apple" page could indicate other data about apples, including their possible colors and sizes, nutritional
886:
728:
Most semantic wikis have simple querying support (such as searching for all triples with a certain subject, predicate, object), but the degree of advanced query support varies; some semantic wikis provide querying in standard languages like
401:. Semantic wikis, on the other hand, provide the ability to capture or identify information about the data within pages, and the relationships between pages, in ways that can be queried or exported like a
1966:
474:
community provide one basis for formal reasoning about the knowledge model that is developed by importing this data. However, there is also a wide array of technologies that work on relational data.
490:
would contain, in addition to standard text information, some machine-readable or at least machine-intuitable semantic data. The most basic kind of data would be that an apple is a kind of
901:, Sebastian Schaffert, Proceedings of the 15th IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (WETICE'06), June 6, 2006
889:, Sebastian Schaffert, Andreas Gruber, and Rupert Westenthaler, Research Report, Knowledge-based Information Systems Group, Salzburg Research, Austria, November 23, 2005
733:, while others instead provide a custom language. User interface support to construct these also varies. Visualization of the links especially may be supported.
718:. In semantic wikis, these features still typically exist, but integrated these with other semantic declarations, and sometimes with their use restricted.
412:
Semantic wikis were first proposed in the early 2000s, and began to be implemented seriously around 2005. As of 2021, well-known semantic wiki engines are
458:
Providing information through a formal notation allows machines to calculate new facts, as relations between pages, from the facts represented in the
518:
In the 1980s, before the Web began, there were several technologies to process typed links between collectively maintained hypertext pages, such as
553:
posting by Andy
Dingley in January 2001. Its first known appearance in a technical paper was in a 2003 paper by Austrian researcher Leo Sauermann.
714:
Conventional, non-semantic wikis typically still have ways for users to express data and metadata, typically by tagging, categorizing, and using
923:
556:
Many of the existing semantic wiki applications were started in the mid-2000s, including
ArtificialMemory (2004), Semantic MediaWiki (2005),
615:, a collaborative, multi-language store of data, whose data could then be used within Knowledge articles, as well as by the outside world.
629:
There are a number of wiki applications that provide semantic functionality. Some standalone semantic wiki applications exist, including
2053:
678:, or more complex proposal generation or consistency checks. The representation language may be wiki syntax, a standard language like
1341:
495:
1286:
510:—so that an external user or site could, for instance, request a list of all fruits that are red and can also be baked in a pie.
670:
Semantic wikis vary in their degree of formalization. Semantics may be either included in, or placed separately from, the wiki
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support, using a variety of engines. Such reasoning may require that all instance data comply with the ontologies.
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For example, using a specific alternative page name might indicate that a specific type of link was intended.
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June 2006 saw the first meeting dedicated to semantic wikis, the "SemWiki" workshop, co-located with the
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Some standard wiki engines also include the ability to add typed, semantic links to pages, including
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Many semantic wikis can display the relationships between pages, or other data such as dates,
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972:"Extended Artificial Memory. Toward an integral cognitive theory of memory and technology"
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support from within the wiki, and allow it to be loaded, saved, created, and changed.
2017:
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1089:- a mini-series of online conferences about semantic wikis that ran in 2008 and 2009.
722:
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64:
867:
Semantic Wikis: A Comprehensible
Introduction with Examples from the Health Sciences
703:
Some wikis inherit their ontology entirely from a pre-existing strong ontology like
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1083:- contains a list of active, defunct and proposed semantic wiki applications
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The formal notation may be included in the pages themselves by users, as in
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947:"The Gnowsis-Using Semantic Web Technologies to build a Semantic Desktop"
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The knowledge model found in a semantic wiki is typically available in a
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in RDF form, which enables semantic querying of
Knowledge's data.
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or a similar format, it can then be queried in a similar way to a
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IkeWiki: A semantic wiki for collaborative knowledge management
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also varies. More reflexive user interfaces provide strong
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530:. Extensive research was published on these tools by the
1092:
549:
The first known usage of the term "Semantic Wiki" was a
887:
A semantic wiki for collaborative knowledge formation
641:. Another example is the SemanticXWiki extension for
875:
Journal of
Emerging Technologies in Web Intelligence
924:"Wikiwiki (was Theory: "opportunistic hypertext")"
740:, and number values, in various formats, such as
690:MediaWiki the source is always the current page.
2116:
499:information and serving suggestions, and so on.
969:
1547:
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911:Comparison of Semantic MediaWiki and Wikibase
851:Semantic Wikis and Disaster Relief Operations
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921:
1033:Semantic Mediawiki gone from Wikia forever?
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1115:
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932:comp.infosystems.www.authoring.site-design
437:, so that machines can process it into an
369:
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1342:Open protein structure annotation network
618:
575:. This workshop ran annually until 2010.
397:, wikis have structured text and untyped
977:. Technical University of Kaiserslautern
1287:Engineering and Technology History Wiki
1058:, ObjectSecurity Ltd, November 16, 2012
1017:Wikia offers Semantic MediaWiki hosting
744:, tables, charts, calendars, and maps.
2117:
1760:Knowledge representation and reasoning
1694:Semantic service-oriented architecture
423:
1535:
1096:
1046:, Official Google Blog, July 16, 2010
502:If the wiki exports all this data in
393:described in its pages. Regular, or
544:computer supported cooperative work
482:Imagine a semantic wiki devoted to
13:
1821:Syntax and supporting technologies
665:
470:The technologies developed by the
428:
14:
2141:
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1044:Deeper understanding with Metaweb
1561:
952:. Technical University of Vienna
922:Andy Dingley (21 January 2001).
569:European Semantic Web Conference
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608:, the company behind Freebase.
536:computer-mediated communication
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1935:Schemas, ontologies and rules
995:Call for Papers: SemWiki 2006
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611:In April 2012, work began on
1292:Family History Research Wiki
877:, Vol. 1, No. 1, August 2009
721:Some semantic wikis provide
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1962:Semantic Web Rule Language
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301:Predicate transformational
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439:entity-relationship model
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1740:Information architecture
1087:SemanticWiki mini-series
970:Dr. Lars Ludwig (2013).
738:geographical coordinates
1957:Rule Interchange Format
1720:Collective intelligence
1056:Semantic XWikiExtension
786:Software and websites:
654:Tiki Wiki CMS Groupware
389:that has an underlying
323:Abstract semantic graph
318:Abstract interpretation
2130:Semantic wiki software
1377:The Cutting Room Floor
1282:Encyclopedia Dramatica
1081:Semantic wiki projects
1021:semantic-mediawiki.org
945:Leo Sauermann (2003).
625:Semantic wiki software
619:Semantic wiki software
593:, the world's largest
532:collaboration software
391:model of the knowledge
142:Theory of descriptions
111:Context (language use)
871:Maged N. Kamel Boulos
242:programming languages
1755:Knowledge management
1750:Knowledge extraction
494:—what's known as an
186:Semantic file system
2027:Common vocabularies
1981:Semantic annotation
1679:Semantic publishing
1506:Wikis and education
857:, December 13, 2006
800:Math Images Project
443:relational database
424:Key characteristics
206:Semantic similarity
1775:Digital humanities
1664:Semantic computing
1654:Semantic analytics
1638:Rule-based systems
853:, Soenke Ziesche,
637:, an extension to
635:Semantic MediaWiki
486:. The page for an
450:Semantic MediaWiki
414:Semantic MediaWiki
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2018:Facebook Platform
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1725:Description logic
1684:Semantic reasoner
1674:Semantic matching
1602:Semantic networks
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169:Machine-learning
132:Semantic feature
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1659:Semantic broker
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1317:The Hidden Wiki
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93:Topics
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1972:SHACL
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1131:Types
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488:apple
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