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Page 1: pro-iBiosphere 2013-05 Linked Open Data (Gregor Hagedorn)

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

Page 27: pro-iBiosphere 2013-05 Linked Open Data (Gregor Hagedorn)

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

Page 28: pro-iBiosphere 2013-05 Linked Open Data (Gregor Hagedorn)

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


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