Ambiguities in representing thesauri using extended SKOS Examples from real life
description
Transcript of Ambiguities in representing thesauri using extended SKOS Examples from real life
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Ambiguities in representing thesauri using extended SKOS
Examples from real life
Jutta Lindenthal
TPDL – 2012-09-27 – NKOS workshop
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Concept hierarchies hierarchical relationships between concepts vs. grouping concepts
Node Labels and Top Terms node labels in the strict sense: denoting arrays of sibling concepts nodes representing concepts not used for indexing nodes representing classification-like elements not used for indexing top terms used to cluster concepts
Groups classification-like structures, often called themes, fields, subject areas, subject
categories, subject groups, micro-thesauri, sub-thesauri, and the like often used for systematic display and browsing
Displays and user interfaces
Presentation overview
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Beauty is in the eye of the beholder ...
doctorgrandam
heart
lungliver
kidney stomachgut
Pussy
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Concept hierarchies
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all
mammals
some
HierarchicalRelationship(Generic)
Concept hierarchy – All-and-some-test
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all
pets
some
HierarchicalRelationship(Generic)
Concept hierarchy – All-and-some-test
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all
zoology
some
HierarchicalRelationship(Generic)
Concept hierarchy – All-and-some-test
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vertebrates
animals
all
mammals
some
HierarchicalRelationship(Generic)
Concept hierarchy – transitive closuretransitive closure
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Source: Art & Architecture Thesaurus
Concept hierarchy and thesaurus arrays aGeneric Hierarchy
cats. (cats by degree of domestication).. wild cats.. semi-feral cats.. domestic cats . (cats by usage).. laboratory cats.. pet cats
ThesaurusArray
array
array <ordered>
node label
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ThesaurusArray and NodeLabel according to ISO 25964-1
iso-thes:ThesaurusArray
(cats by degree of domestication)
skos:member
skos:narrower
skos:narrower
skos:member
skos:member
iso-thes:ThesaurusArray(cats by usage)
skos:Conceptdomestic cats
skos:narrower
iso-thes:subordinateArray
skos:Conceptcats
iso-thes:subordinateArray
skos:member
skos:member
skos:narrower
skos:narrower
skos:Conceptsemi-feral cats
skos:Conceptwild cats
skos:Conceptlaboratory cats
skos:Conceptpet cats
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Source: Art & Architecture Thesaurus
Concept hierarchy and concept groups aGeneric Hierarchy
25 Zoology25.3 Spezific zoologySource: Gemeinsame Normdatei
ConceptGroup
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Concept groups according to ISO 25964-1
Source: SWD-Sachgruppen
...
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Node Labels and Top Terms
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Art & Architecture Thesaurus
Guide Terms in the AAT Thesaurus (1)
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Art & Architecture Thesaurus
Guide Terms in the AAT Thesaurus (2)
Source: Art & Architecture Thesaurus
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Art & Architecture Thesaurus
Guide Terms in the AAT Thesaurus (3)
Source: Art & Architecture Thesaurus
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Thesaurus Ethics in the Life Sciences
„Node label“ in the Bioethic Thesaurus (1)
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Thesaurus Ethics in the Life Sciences
„Node label“ in the Bioethic Thesaurus (2)
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Art & Architecture Thesaurus
Facets, Hierarchy Names and Guide Terms in the AAT Thesaurus Record Typefacethierarchy nameguide termconceptconceptconceptguide termconceptguide term
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ELSST European Language Social Science Thesaurus
Top Terms in the ELSST Thesaurus
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Groups
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...
Systematics of the STW Thesaurus for Economics (1)
Source: STW Thesaurus for Economics
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@base <http://zbw.eu/stw/> .
<thsys/71107> a skos:Concept, zbwext:Thsys ; rdfs:isDefinedBy <thsys/71107/about> ; rdfs:label "Securities Markets"@en, "Wertpapiermärkte"@de ; skos:notation "V.05.06.02"^^xsd:string ; skos:prefLabel "V.05.06.02 Securities Markets"@en, "V.05.06.02 Wertpapiermärkte"@de . skos:broader <thsys/70187> ; [Financial Markets] skos:narrower <descriptor/...>, <thsys/71105>, [Bond Market] <thsys/71106> ; [Stock Market] skos:inScheme <../stw> .
Source: STW Thesaurus for Economics
Turtle representation of a systematics group of the STW
Source: http://zbw.eu/stw/versions/8.10/thsys/71107/about.ttl
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<thsys/71107>
a iso-thes:ConceptGroup ; rdfs:label "Securities Markets"@en, "Wertpapiermärkte"@de ; skos:notation "V.05.06.02"^^xsd:string ; skos:prefLabel "Securities Markets"@en, "Wertpapiermärkte"@de . iso-thes:subGroup <thsys/71105> ; iso-thes:subGroup <thsys/71106> ; skos:member <descriptor/...> , skos:member <descriptor/...> ; skos:inScheme <stw> ; iso-thes:classificationOf <../stw> .
Turtle representation using iso-thes extensions
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Systematics groups of the STW represented with iso-thes elements
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Displays and user in interfaces
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Source: Alibaba.com
Source: AGROVOC
fertilizers (by type of plant nutrient) Calcium fertilizers Magnesium fertilizers (by number of plant nutrients) Compound fertilizers Fertilizer combinations (by substance group) Inorganic fertilizers Organic fertilizers Organomineral fertilizers (by aggregate state) Liquid fertilizers Liquid gas fertilizers (by nutrient release time) Slow release fertilizers
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Descriptor display of German Parliament Thesaurus PARTHES
Thesaurus für Parlamentsmaterialien PARTHES
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Thesaurus für Parlamentsmaterialien PARTHES
Systematic display of German Parliament Thesaurus PARTHES
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Hierarchical display of German Parliament Thesaurus PARTHES
Thesaurus für Parlamentsmaterialien PARTHES
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Make things as simple as possible, but not simpler.