pro-iBiosphere 2013-05 Linked Open Data (Gregor Hagedorn)
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Transcript of pro-iBiosphere 2013-05 Linked Open Data (Gregor Hagedorn)
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Linked Open Data
and
Scientific knowledge
management systems
Gregor Hagedorn, Museum für Naturkunde
Berlin © U.Kils, CC BY-SA 3.0; from Wikimedia Commons
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1. Scientist reads in the Web browser
2. Data- federation /-indexing
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Links are not yet operational
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GBIF Datenfederation
Data from Thailand?
Fungal Cultures
CBS
Herbarium München
Insect Collection
MfN
Bird data Germany
after Dave Remsen, GBIF, TDWG 2011
Bird data Austria
Insect Collection NHM, UK
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© i4Life
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Some linking (R. Page)
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Linking is usually DB-internal = local
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This is inefficient.
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- Stable Links - Return data
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Identifiers
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Specimen Collection Datenbase
Botanical Nomenclatural
Database
Classical Identifiers
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Specimen Collection Datenbase
Taxon = urn:uuid: 6e8bc430-9c3a-
11d9-9669-0800200c9a66
Botanical Nomenclatural
Database
Taxon = urn:uuid: 6e8bc430-9c3a-
11d9-9669-0800200c9a66
Classical Identifiers
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Specimen Collection Datenbase
Taxon = urn:uuid: 6e8bc430-9c3a-
11d9-9669-0800200c9a66
Botanical Nomenclatural
Database
Taxon = urn:uuid: 6e8bc430-9c3a-
11d9-9669-0800200c9a66
Classical Identifiers If this
found:
And this
found:
Then relation
detected:
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Specimen Collection Datenbase
Taxon = http://
id.pesi.org/tax/6e8bc430-9c3a-
11d9-9669-0800200c9a66
Botanical Nomenclatural
Database
@ http:// id.pesi.org/tax/6
e8bc430-9c3a-11d9-9669-
0800200c9a66
Semantic Web
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Specimen Collection Datenbase
Taxon = http://
id.pesi.org/tax/6e8bc430-9c3a-
11d9-9669-0800200c9a66
Botanical Nomenclatural
Database
@ http:// id.pesi.org/tax/6
e8bc430-9c3a-11d9-9669-
0800200c9a66
Semantic Web If this
found: Then
relation derefenced
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Specimen Collection Datenbase
Taxon = http://
id.pesi.org/tax/6e8bc430-9c3a-
11d9-9669-0800200c9a66
Botanical Nomenclatural
Database
@ http:// id.pesi.org/tax/6
e8bc430-9c3a-11d9-9669-
0800200c9a66
Semantic Web
Micro-citation of data!
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Semantic Web
B C
Thing
A D E
= typed links (properties)
Thing
Thing
Thing
Thing
Thing Thing
Thing
Thing
Thing
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Linked Open Data Cloud (LOD 2011)
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Linked Open Data Cloud (LOD 2011)
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Why Linked Open Data?
– Distributed Web Model • using W3C standards (xml, rdf, owl)
• Machine usable data (automatic analysis & reasoning)
• Web pages at same identifier (content negotiation)
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Why Linked Open Data?
– Distributed Web Model • using W3C standards (xml, rdf, owl)
• Machine usable data (automatic analysis & reasoning)
• Web pages at same identifier (content negotiation)
– Anyone can say anything about anything, anywhere • Usages that the data providers never anticipated • Third parties connect concepts between data sets • Particular needs contribute to global achievement
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Why Linked Open Data?
– Distributed Web Model • using W3C standards (xml, rdf, owl)
• Machine usable data (automatic analysis & reasoning)
• Web pages at same identifier (content negotiation)
– Anyone can say anything about anything, anywhere • Usages that the data providers never anticipated • Third parties connect concepts between data sets • Particular needs contribute to global achievement
– Flexible to adapt to almost any form of data – Information managed at source plus annotated globally
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Why Linked Open Data?
– Distributed Web Model • using W3C standards (xml, rdf, owl)
• Machine usable data (automatic analysis & reasoning)
• Web pages at same identifier (content negotiation)
– Anyone can say anything about anything, anywhere • Usages that the data providers never anticipated • Third parties connect concepts between data sets • Particular needs contribute to global achievement
– Flexible to adapt to almost any form of data – Information managed at source plus annotated globally – Queries and other analysis can combine arbitrary sets of
data, anywhere and owned by anyone – Common and diverse vocabularies can be used together
and related to each other (creativity, science!)
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Strategy: 1. Stable Identifiers Now (Semantic Web compatible, http-dereferenceable)
2. Semantic Web Later ...
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Identifier patterns?
–http://objects. myorg.edu/id/1C4EDC178 AD79DD7F1A5AB856E8C5BCA#treatment
or –http://concepts.myorg.edu/id/123#treatment or –http://id.plazi.org/specimen/123#label
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Stability is a management
decision!
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Scientific knowledge
management systems?
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Discoverable Distributed Dissent & Discourse
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Fine-granular knowledge curation?
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LOD is not solution to all.
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Infrastructure to build on top of it
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Collaboration must become more efficient