linked open data for cultural heritage
TRANSCRIPT
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Linked Open Datafor cultural heritage
With examples from bookbinding descriptions
Athanasios Velios
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Why should I care about Linked Open
Data?
1
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Development of knowledge
● Observations
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Development of knowledge
● Observations● Summary
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Development of knowledge
● Observations● Summary● Rules
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Development of knowledge
● Observations● Summary● Rules
● New observations
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Development of knowledge
● Observations● Summary● Rules
● New observations
● Revised rules
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Development of knowledge
● Observations● Summary● Rules
● New observations
● Revised rules
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Professor Nicholas Pickwoad
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Slow development
● Observations take time– Few researchers have representative knowledge
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Slow development
● Observations take time– Few researchers have representative knowledge
● Publications are difficult to produce
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Slow development
● Observations take time– Few researchers have representative knowledge
● Publications are difficult to produce/consume– They hardly ever contain data
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Linked Open Data
● Sharing observations– More representative samples
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Linked Open Data
● Sharing observations● Automated summaries
– Still scope to publish commentary
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Linked Open Data
● Sharing observations● Automated summaries● Automated rules
– As reasonable conclusions from summaries
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Linked Open Data
● Sharing observations● Automated summaries● Automated rules● Automated revisions of rules
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Linked Open Data
Data is used in applications, but it was not originally designed for
them
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http://mes-semantics.com/DBpediaMobile/
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Linked data example
{ "head": { "link": [], "vars": ["Lat", "Long"] },
"results": { "distinct": false, "ordered": true, "bindings": [
{ "Lat": { "type": "typed-literal", "datatype": "http://www.w3.org/2001/XMLSchema#float", "value": "46.0516" } , "Long": { "type": "typed-literal", "datatype": "http://www.w3.org/2001/XMLSchema#float", "value": "14.5004" }} ] } }
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Linked data example
{ "head": { "link": [], "vars": ["Lat", "Long"] },
"results": { "distinct": false, "ordered": true, "bindings": [
{ "Lat": { "type": "typed-literal", "datatype": "http://www.w3.org/2001/XMLSchema#float", "value": "46.0516" } , "Long": { "type": "typed-literal", "datatype": "http://www.w3.org/2001/XMLSchema#float", "value": "14.5004" }} ] } }
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How do I publish my database as
Linked Open Data?
2
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World Wide Web Consortium
Resource Description Framework
Tim Berners-Lee (Photograph: Rick Friedman, The Guardian)
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Resource Description Framework - RDF
Simplest way to share
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RDF
Subject(what do we describe?)
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RDF
Subject(what do we describe?)
Predicate(which property of subject?)
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Predicate(which property of subject?)
RDF
Object(what value of property?)
Subject(what do we describe?)
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has material(which property of subject?)
RDF
Wood(what value of property?)
MS Arabic 450(what do we describe?)
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has material(which property of subject?)
RDF
Wood(what value of property?)
MS Arabic 450(what do we describe?)
ambiguouslabel
ambiguouslabel
ambiguouslabels
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www.cidoc-crm.org/rdfs/...#
P45.consists_of
RDF
vocab.getty.edu/aat/300011914
www.ligatus.org.uk/stcatherines/ms/438
ambiguouslabel
ambiguouslabel
explicitlabels
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www.cidoc-crm.org/rdfs/...#
P45.consists_of
RDF
vocab.getty.edu/aat/300011914
www.ligatus.org.uk/stcatherines/ms/438
ambiguouslabel
ambiguouslabel
identifiersURIs
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www.cidoc-crm.org/rdfs/...#
P45.consists_of
RDF
vocab.getty.edu/aat/300011914
www.ligatus.org.uk/stcatherines/ms/438
Ligatuswebsite
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www.cidoc-crm.org/rdfs/...#
P45.consists_of
RDF
vocab.getty.edu/aat/300011914
www.ligatus.org.uk/stcatherines/ms/438
Gettywebsite
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www.cidoc-crm.org/rdfs/...#
P45.consists_of
RDF
vocab.getty.edu/aat/300011914
www.ligatus.org.uk/stcatherines/ms/438
?
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ICOM-CIDOC-CRM
P45 consists of (is incorporated in)Domain: #_E18_Physical_Thing Physical ThingRange: #_E57_Material Material
Scope note: This property identifies the instances of E57 Materials of which an instance of E18 Physical Thing is composed.
All physical things consist of physical materials. P45 consists of (is incorporated in) allows the different Materials to be recorded. P45 consists of (is incorporated in) refers here to observed Material as opposed to the consumed raw material.
Examples: silver cup 232 (E22) consists of silver (E57)
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www.cidoc-crm.org/rdfs/...#
P45.consists_of
RDF
vocab.getty.edu/aat/300011914
www.ligatus.org.uk/stcatherines/ms/438
CIDOCwebsite
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The Girdle Book
http://collection.britishmuseum.org/id/object/MCN15614
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Man-MadeObject
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enamel
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gold
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serpent
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Solomon
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Your data is free text
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Your data is free text
● Bad idea: avoid free text
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Your data is free text
● Bad idea: avoid free text
● Natural Language Processing● Use of thesauri● Attempt to identify concepts and relationships
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Free-text
The binding has an unsupported sewing structure, using four stations, with wooden boards attached to the sewn bookblock by means of sewing thread only; a textile spine lining extending onto the outer face of the boards; endbands sewn to the bookblock and the head and tail edges of the boards; and metal bosses and triple interlaced leather clasp-straps laced through the right board with metal rings that fit over edge pins on the left board.
Honey, A., and N. Pickwoad. 2010. ‘Learning from the Past: Using Original Techniques to Conserve a Twelfth-century Illuminated Manuscript and Its Sixteenth-century Greek-style Binding at the Monastery of St Catherine, Sinai’. In Conservation and the Eastern Mediterranean: Contributions to the Istanbul Congress 20-24 September 2010, ed. C. Rozeik, R. Ashok, and D. Saunders, 56–61. Istanbul, Turkey: International Institute for Conservation of Historic and Artistic Works.
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Free-text
The binding has an unsupported sewing structure, using four stations, with wooden boards attached to the sewn bookblock by means of sewing thread only; a textile spine lining extending onto the outer face of the boards; endbands sewn to the bookblock and the head and tail edges of the boards; and metal bosses and triple interlaced leather clasp-straps laced through the right board with metal rings that fit over edge pins on the left board.
Honey, A., and N. Pickwoad. 2010. ‘Learning from the Past: Using Original Techniques to Conserve a Twelfth-century Illuminated Manuscript and Its Sixteenth-century Greek-style Binding at the Monastery of St Catherine, Sinai’. In Conservation and the Eastern Mediterranean: Contributions to the Istanbul Congress 20-24 September 2010, ed. C. Rozeik, R. Ashok, and D. Saunders, 56–61. Istanbul, Turkey: International Institute for Conservation of Historic and Artistic Works.
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Your data is in fields
● Match data with concepts from thesauri
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Language of Bindings Thesaurus
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Your data is in fields
● Match data with concepts from thesauri● Match data relationships with formal
relationships (ontologies)
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Your data is in fields
● Match data with concepts from thesauri● Match data relationships with formal
relationships (ontologies)● Give unique addresses to each field online
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Your data is in fields
● Match data with concepts from thesauri● Match data relationships with formal
relationships (ontologies)● Give unique addresses to each field online● Publish online without copyright restrictions
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Your data is in fields
● Match data with concepts from thesauri● Match data relationships with formal
relationships (ontologies)● Give unique addresses to each field online● Publish online without copyright restrictions
● Existing data models can remain (but a revision may be a good idea)
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More problems with your data
● Compound and/or non descriptive fields
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More problems with your data
● Compound and/or non descriptive fields● Uncertain / inaccurate data
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Ioannes Copus, De fructibus libri quatuor, Paris: Christian Wechel, 1535
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SIG
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The time is right
● Thesauri are being published● Mature ontologies exist● Online systems are popular
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Language of Bindings Thesaurus
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...
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http://lod-cloud.net/Linking Open Data cloud diagram 2014,by Max Schmachtenberg, Christian Bizer, Anja Jentzsch and Richard Cyganiak.
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[email protected] - @a_velios