Ambiguities in representing thesauri using extended SKOS Examples from real life Jutta Lindenthal TPDL – 2012-09-27 – NKOS workshop.

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Presentation transcript:

Ambiguities in representing thesauri using extended SKOS Examples from real life Jutta Lindenthal TPDL – – NKOS workshop

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

Beauty is in the eye of the beholder... doctor grandam heart lung liver kidneystomach gut Pussy

Concept hierarchies

all mammals some HierarchicalRelationship (Generic) Concept hierarchy – All-and-some-test

all pets some HierarchicalRelationship (Generic) Concept hierarchy – All-and-some-test

all zoology some HierarchicalRelationship (Generic) Concept hierarchy – All-and-some-test

vertebrates animals all mammals some HierarchicalRelationship (Generic) Concept hierarchy – transitive closure transitive closure

Source: Art & Architecture ThesaurusArt & Architecture Thesaurus Concept hierarchy and thesaurus arrays a Generic Hierarchy cats. (cats by degree of domestication).. wild cats.. semi-feral cats.. domestic cats. (cats by usage).. laboratory cats.. pet cats ThesaurusArray array node label

ThesaurusArray and NodeLabel according to ISO iso-thes: ThesaurusArray (cats by degree of domestication) skos:member skos:narrower skos:member iso-thes: ThesaurusArray (cats by usage) skos:Concept domestic cats skos:narrower iso-thes:subordinateArray skos:Concept cats iso-thes:subordinateArray skos:member skos:narrower skos:Concept semi-feral cats skos:Concept wild cats skos:Concept laboratory cats skos:Concept pet cats

Source: Art & Architecture ThesaurusArt & Architecture Thesaurus Concept hierarchy and concept groups a Generic Hierarchy 25 Zoology 25.3 Spezific zoology Source: Gemeinsame NormdateiGemeinsame Normdatei ConceptGroup

Concept groups according to ISO Source: SWD-SachgruppenSWD-Sachgruppen...

Node Labels and Top Terms

Art & Architecture Thesaurus Guide Terms in the AAT Thesaurus (1)

Art & Architecture Thesaurus Guide Terms in the AAT Thesaurus (2) Source: Art & Architecture ThesaurusArt & Architecture Thesaurus

Guide Terms in the AAT Thesaurus (3) Source: Art & Architecture ThesaurusArt & Architecture Thesaurus

Thesaurus Ethics in the Life Sciences Node label in the Bioethic Thesaurus (1)

Thesaurus Ethics in the Life Sciences Node label in the Bioethic Thesaurus (2)

Art & Architecture Thesaurus Facets, Hierarchy Names and Guide Terms in the AAT Thesaurus Record Type facet hierarchy name guide term concept guide term concept guide term

ELSST European Language Social Science Thesaurus Top Terms in the ELSST Thesaurus

Groups

... Systematics of the STW Thesaurus for Economics (1) Source: STW Thesaurus for EconomicsSTW Thesaurus for Economics

@base. a skos:Concept, zbwext:Thsys ; rdfs:isDefinedBy ; rdfs:label "Securities ; skos:notation "V "^^xsd:string ; skos:prefLabel "V Securities "V skos:broader ; [Financial Markets] skos:narrower,, [Bond Market] ; [Stock Market] skos:inScheme. Source: STW Thesaurus for EconomicsSTW Thesaurus for Economics Turtle representation of a systematics group of the STW Source:

a iso-thes:ConceptGroup ; rdfs:label "Securities ; skos:notation "V "^^xsd:string ; skos:prefLabel "Securities iso-thes:subGroup ; skos:member, skos:member ; skos:inScheme ; iso-thes:classificationOf. Turtle representation using iso-thes extensions

Systematics groups of the STW represented with iso-thes elements

Displays and user in interfaces

Source: Alibaba.comAlibaba.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

Descriptor display of German Parliament Thesaurus PARTHES Thesaurus für Parlamentsmaterialien PARTHES

Thesaurus für Parlamentsmaterialien PARTHES Systematic display of German Parliament Thesaurus PARTHES

Hierarchical display of German Parliament Thesaurus PARTHES Thesaurus für Parlamentsmaterialien PARTHES

Make things as simple as possible, but not simpler.