Semantic MediaWiki A Tool for Collaborative Vocabulary Development Harold Solbrig Division of Biomedical Informatics Mayo Clinic

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1 Semantic MediaWiki A Tool for Collaborative Vocabulary Development Harold Solbrig Division of Biomedical Informatics Mayo Clinic

2 Outline MediaWiki what it is, how it works Semantic MediaWiki MediaWiki meets the Semantic Web Vocabulary Development in Semantic MediaWiki

3 Outline MediaWiki what it is, how it works Semantic MediaWiki MediaWiki meets the Semantic Web Vocabulary Development in Semantic MediaWiki

4 Wiki Named after the Wiki Wiki shuttle bus at the Honolulu International Airport Wiki means quick Characteristics All users can edit (almost) any page Links between pages are easy to create

5 Wiki

6 MediaWiki MediaWiki is one of the may flavors of Wiki Solid code base Basis for thousands of wikis on the web including Wikipedia

7 MediaWiki Editing Classification Internal Page External Link

8 MediaWiki Editing Classification New Internal Page External Link Existing Internal Page

9 MediaWiki Editing Selecting an existing page

10 MediaWiki Editing

11 MediaWiki Editing Selecting a missing page

12 MediaWiki Editing New Page Creation

13 MediaWiki Editing Categories

14 MediaWiki Editing Categories Classification Internal Link

15 MediaWiki Editing Categories Category Members

16 WikiPedia In MediaWiki

17

18

19 Wikipedia In MediaWiki

20 Wikipedia Over 10 million pages in 253 languages While there is still debate about the overall accuracy and reliability, there is no doubt that it represents a valuable knowledge resource Pages are highly interconnected (see SKOS example above) and categorized

21 Outline MediaWiki what it is, how it works Semantic MediaWiki MediaWiki meets the Semantic Web Vocabulary Development in Semantic MediaWiki

22 Background RDF Resource Description Framework Describes Resources Format: Subject Predicate Object SKOS type formal language SKOS represents classification schemes SKOS released 2003

23 Background RDFS - RDF Schema Adds Semantics to RDF Class, Literal, Property, Datatype subclass, subproperty SKOS type Knowledge Representation Knowledge Representation subclassof Information Science

24 OWL and the Semantic Web Represented as RDF triples OWL adds further semantics to RDFS Inheritence, inference, set theory

25 Semantic MediaWiki NKOS SKOS Presentation??? NKOS/CENDI Workshop NKOS SKOS Presentation??? Ed Summers NKOS SKOS Presentation??? SKOS NKOS SKOS Presentation type Events

26 Semantic MediaWiki Events??? People Events subclassof Happening

27 Semantic MediaWiki Premise is that we should be able to harvest the knowledge in Wikis (especially Wikipedia!) Links current page??? Linked page Categories: current page type Link current page subclassof Link Data (e.g. meeting in 2008) current page???? (data)

28 Semantic Mediawiki Properties Property

29 Semantic Mediawiki Properties NKOS SKOS Presentation eventtopic SKOS NKOS SKOS Presentation presenter Ed Summers NKOS SKOS Presentation eventurl NKOS SKOS Presentation eventdate 2008

30 Semantic MediaWiki Defining Properties

31 Semantic MediaWiki Defining Properties eventdate type DataProperty eventdate range xsd:datetime

32 Semant MediaWiki Defining Properties

33 Semantic MediaWiki Property Formatting

34 Semantic MediaWiki Query Language

35 Semantic MediaWiki RDF Dump

36

37 Semantic MediaWiki Can generate semantic triples * Subject Property Object Export RDF Run SPARQL-like queries Extensions: Semantic Forms form based entry SMW Halo syntax directed entry

38 Semantic Mediawiki But what of Semantics? Dublin Core SKOS FOAF RDF & RDFS OWL

39 Solution: Semantic Mediawiki Semantics Import external resources via Semantic Templates

40 Templates

41 Templates

42 Templates Reference Copy

43 Templates as a Macro Language Parameter Substitution Macro Language

44 Templates as a Macro Language

45 Templates as a Macro Language

46 Importing Ontology Using Templates

47 SKOS:Concept Scheme In Semantic MediaWiki

48 SKOS:ConceptScheme In Semantic MediaWiki

49 Importing an Ontology Using Semantic Templates Terminology Transform Wiki Page SMW LexWiki RDF

50 Semantic Templates {{Template1}} {{Template2}} Templates: 1)Both rendering and mapping 2)Rendering can be redefined [[property::value]] Properties: 1)Must be consistent and fixed 2)Should use RDF / DC / SKOS /

51 Sample from Dublin Core

52 Semantic MediaWiki The obvious next step use the wiki for creation and improvement of terminology content

53 Outline MediaWiki what it is, how it works Semantic MediaWiki MediaWiki meets the Semantic Web Vocabulary Development in Semantic MediaWiki

54 Semantic MediaWiki Workflow Distribution Common Distribution Model Semantic MediaWiki (++) Controlled Terminology Online Services Version Staging Annotations and Change Requests Community Review Curation

55 BiomedGT

56 Browsing

57 BiomedGT Content search

58 BiomedGT Subscribe Structured Changes Pending Changes Free Text Discussion

59 Forms Based Entry

60 BiomedGT Staging are for the revision of the NCI Thesaurus Semantic MediaWiki / Protégé Editor

61 WHO ICD 11

62 Next Steps: LexWiki Move for a pure RDF core in Semantic Mediawiki Create an RDF Model of LexGrid w/ full RDF/RDFS/DC/SKOS/ mappings Expand the model to terminology + metadata Ed 3 as framework XMDR as implementation

63 Semantic MediaWiki Some questions regarding categories and relations Are categories really type / subclass relationships or maybe just BT / LT? Is it practical to assign roles everywhere or maybe just start w/ RT? Is there value in a SKOS rendering or should we just bite the bullet?

64 Data Models in SMW

65 Data Models in SMW

66 Data Models in SMW

67 OOR Implementation OOR RDF Triple Store LexGrid++/XMDR Semantics

68 Credits The work for this presentation was funded by the National Cancer Institute under GSA Contract GS-35F-0009L, Review of NCI Thesaurus for OBO-Compliance and Training to Help NCI Achieve Compliance The picture of the wiki wiki bus was taken from

69 References Your faithful narrator:

WHO ICD11 Wiki LexWiki, Semantic MediaWiki and the International Classification of Diseases

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