Nobel Prizes as Linked Open Data
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The Nobel Prize as Linked Data metasolutions.se 2014-10-24 Matthias Palmér [email protected] PhD from KTH with focus on: Linked Data based Webbapplications
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Transcript of Nobel Prizes as Linked Open Data
The Nobel Prize as Linked Data
metasolutions.se
2014-10-24
Matthias Palmé[email protected]
PhD from KTH with focus on:Linked Data based Webbapplications
Publish
Import
Edit
User Interface
LODifyEntryScape
Customer adaptions
Who are MetaSolutions
A technology company that:➔ can manage your Linked Data in the cloud➔ provides an Open Source and collaborative Linked Data Plattform➔ provides consultancy services around Linked Data
Who are Nobel MediaTo inform a global audience about Nobel Laureates and their discoveries, inspiring engagement in Nobel related areas of science, literature and peace.
Digital MediaBroadcastEvents
Phase 1 - expose Linked Data externally1. Spread information on Nobelprizes2. Enable others to build apps or services3. Provide opportunities for more in-depth analyzes
Phase 2 - use the Linked Data internally4. Retrieve external information for internal use5. Validate and strengthen master data6. Better coverage for different target groups
Why Nobelprizes as Linked Data
Phase 1 - expose Linked Data
Deciding on a Linked Data Expression1. Reuse existing vocabularies2. Define new vocabulary3. Document: specification + RDF-schema4. Describe and publish dataset information
Expose Linked Data from Database1. Set up infrastructure with replicated Database2. Configure LODify platform, scalability
Interlink with other datasets1. Reconciliation with DBPedia2. Extend Database
Vocabulary
Vocabularies reused● DCTerms● FOAF● DBPedia-ontology● RDF and RDF Schema (naturally)
New vocabulary● 10 classes● 14 properties
Linked Data for Nobelprizes
Rights● Creative Commons Zero (CC0)● “As is” “As available” service● “Fair use” demand
Publication of dataset● in CKAN installation at datahub.io● DCAT-AP and inclusion in öppnadata.se in progress
(VINNOVA funded project, will be at dcat-editor.com)
Dataset information published
SPARQL exemple
Swedish female Nobelprize laureates:
SELECT DISTINCT ?label ?motivation WHERE {
?laureate rdf:type nobel:Laureate .
?laureate dbpedia-owl:birthPlace <http://data.nobelprize.org/resource/country/Sweden> .
?laureate foaf:gender "female" .
?laureate nobel:laureateAward ?award .
?award rdfs:label ?label .
optional {
?award nobel:motivation ?motivation .
FILTER (langMatches(lang(?motivation), "sv"))
}
}
LIMIT 10Run the example!
SPARQL exempel 2
Nobelprize laureates who are born in Sweden and share the price with someone else.
SELECT DISTINCT ?name WHERE {
?laureate dbpedia-owl:birthPlace <http://data.nobelprize.org/resource/country/Sweden> .
?laureate nobel:laureateAward ?award .
?award nobel:share ?share .
?laureate foaf:name ?name .
FILTER (xsd:int(?share) > 1 )
}Run the example!
Phase 1 - reaction at Nobel Media
● Good that external parties can use our data.
● But what do we gain ourselfs from Linked Data?
● How can we use linked data ourselves?
● How are we a part of the bigger LOD cloud?
How do we eat use our own dog food Linked Data?
Enhance webpages by including:● Laureate information from DBPedia● Important publications from pubmed
(via links to bio2rdf and linkedlifedata)● An embedded Linked Data Browser
Better position Nobel Prizes in the LOD cloud● DBPedia, freebase, viaf, yago, bio2rdf,
linkedlifedata
Improved quality of own data by comparing with other sources
Phase 2 - use Linked Data internally
Nobel Laureate
Truly Linked Nobel Prizes!
Nobel Prize
YAGO
Freebase
DBpedia
VIAF
Bio2RDF
Linked Life Data
...
...
Linked Data Cache
● Neccessary due to○ different levels of service
(DBpedia sometimes slow or down)○ Reduce amount of requests
(i.e. labels on linked resources in same request)○ Unified RDF format
(I.e. write code directly against RDF/JSON)
● Challenges in configuration○ Cache for how long○ Which properties to follow○ Only include suitable subsets of available RDF
Linked Data Browser
Linked Data Browser
● Characteristics○ Ordered presentation○ Labels + explanatory texts○ Groupings○ Hide URI:s○ If translations exists, show only one○ Handle links to non-Linked Data resources
● Technically○ Based on RDForms (javascript library)○ Configurable for different vokabularies○ Depends on a Linked Data Cache
Phase 2 architecture
Data, documentation, article, press
data.nobelprize.org
dokumentation
article on semanticweb.com
paper at ISWC-Dev
Summary
Added value for Nobel Media as an organization● Increased amount of quality information ● Pushes towards a better informationmodel,
specialization and positioning with links
Added value for Nobel Medias target groups● Increased access and overview of information● Open and standardized information for developers
Added value for the LOD community● LDC + LDB should be useful in other settings
