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

1. Scientist reads in the Web browser

2. Data- federation /-indexing

Links are not yet operational

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

© i4Life

Some linking (R. Page)

Linking is usually DB-internal = local

This is inefficient.

- Stable Links - Return data

Identifiers

Specimen Collection Datenbase

Botanical Nomenclatural

Database

Classical Identifiers

Specimen Collection Datenbase

Taxon = urn:uuid: 6e8bc430-9c3a-

11d9-9669-0800200c9a66

Botanical Nomenclatural

Database

Taxon = urn:uuid: 6e8bc430-9c3a-

11d9-9669-0800200c9a66

Classical Identifiers

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:

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

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

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!

Semantic Web

B C

Thing

A D E

= typed links (properties)

Thing

Thing

Thing

Thing

Thing Thing

Thing

Thing

Thing

Linked Open Data Cloud (LOD 2011)

Linked Open Data Cloud (LOD 2011)

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)

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

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

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!)

Strategy: 1. Stable Identifiers Now (Semantic Web compatible, http-dereferenceable)

2. Semantic Web Later ...

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

Stability is a management

decision!

Scientific knowledge

management systems?

Discoverable Distributed Dissent & Discourse

Fine-granular knowledge curation?

LOD is not solution to all.

Infrastructure to build on top of it

Collaboration must become more efficient