Modelling Knowledge Organization Systems and Structures
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In this paper FRSAD (as a conceptual model) is compared to SKOS and SKOS XL (as data models), with implementation examples. ISKO-UK 2011 Conference, London, July 2011.
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Modelling Knowledge Organization Systems and Structures
- 1. Modelling Knowledge Organization Systems and Structures -A discussion in the context of conceptual and data models Maja Žumer University of Ljubljana Slovenia Marcia Lei Zeng Kent State University USA ISKO-UK Biennial Conference, July 4-5, 2011, London
- 2. I. Background Zumer & Zeng, ISKO-UK, 2011, London
- 3. FRSAD – generalisation of FRBR Zumer & Zeng, ISKO-UK, 2011, London
- 4. The core of the FRSAD conceptual model Zumer & Zeng, ISKO-UK, 2011, London FRSAD Part 1: WORK has as subject THEMA / THEMA is subject of WORK FRSAD Part 2: THEMA has appellation NOMEN / NOMEN is appellation of THEMA . NOMEN = any sign or sequence of signs (alphanumeric characters, symbols, sound, etc.) that a thema is known by, referred to or addressed as .
- 5. Note: in a given controlled vocabulary and within a domain, a nomen should be an appellation of only one thema . Zumer & Zeng, ISKO-UK, 2011, London The ‘has appellation’ relationship between thema and nomen in a controlled vocabulary:
- 12. A. Example from LCSH. http://id.loc.gov/authorities/sh85145673#concept 1. The first part of the record shows all related concepts. Each concept has a URI, and has a skos:preLabel. The cml:lang is a property of it. Zumer & Zeng, ISKO-UK, 2011, London
- 13. 2. The second part of the XML/RDF record shows the labels and relationships around the concept (1/3) HTML display for human readers: RDF/XML record: Zumer & Zeng, ISKO-UK, 2011, London
- 14. (cont.) 2. The second part of the XML/RDF record shows the labels and relationships around the concept (2/3) HTML display for human readers: RDF/XML record: Zumer & Zeng, ISKO-UK, 2011, London
- 15. (cont.) 2. The second part of the XML/RDF record shows the labels and relationships around the concept (3/3) HTML display for human readers: RDF/XML record: Zumer & Zeng, ISKO-UK, 2011, London
- 18. A Simplified Example Zumer & Zeng, ISKO-UK, 2011, London nomen thema
- 19. Comparing with model 1 SKOS (Core) Zumer & Zeng, ISKO-UK, 2011, London SKOS + SKOSXL
- 20. [… continue for other language labels] THEMA Zumer & Zeng, ISKO-UK, 2011, London NOMEN “ methods”@en xl_en_345 “ published” “ 1981-01-09” “ 4788” literalForm hasSynonym hasStatus hasDateCreated hasCode Scheme C_4788 xl_en_123 xl_de_789 “ METHODE”@ de xl_de_345 “ published” “ 1996-12-24” “ 4788” literalForm hasSynonym hasStatus hasDateCreated hasCode Scheme
Notas do Editor
- Modelling Knowledge Organization Systems and Structures -A discussion in the context of conceptual and data models Maja Žumer, University of Ljubljana, Slovenia Marcia Lei Zeng, Kent State University, USA
- http://www.cas.org/ASSETS/93FD034A0502489FA2474DFC0EE03284/usan.pdf
- The SKOS Core model clearly emphasized a concept-centric view of vocabulary, where primitive objects are not labels; rather, they are concepts represented by labels. The root of the model can be found in the thesaurus standards developed before SKOS Core, but such an emphasis was not clearly stated or modeled due to the mix of relationships of concepts (e.g., Broader Term (BT), Narrower Term (NT), and Related Term (RT)) and between the concept and its labels (Use and Used For (UF)). The use of the word ‘term’ in semantic relationships of broader and narrower concepts reflects such a mixed representation. In the SKOS Core model, labels (preferred, non-preferred, and hidden) are affiliates of a concept while the semantic relationships exists among concepts. “Mirroring the fundamental categories of relations that are used in vocabularies such as thesauri [ISO2788], SKOS supplies three standard properties” (SKOS Simple Knowledge Organization System Primer, 2009) for semantic relationships: skos:broader and skos:narrower for hierarchical links and skos:related for associative (non-hierarchical) links. These convey the same relationships between themas defined in the FRSAD model.
- Figure 6. Aligning FRSAD model with SKOS + SKOS-XL data model. The capitalization of Concept and Label indicates that they are classes.
- <xyz/sch/c_4788> is a skos:Concept instance <xyz/sch/xl_en_123> is a skos-xl:Label instance
- <xyz/sch/c_4788> is a skos:Concept instance <xyz/sch/xl_en_123> is a skos-xl:Label instance