Nobel Prizes as Linked Open Data
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Transcript of Nobel Prizes as Linked Open Data
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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
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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
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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
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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
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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
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Vocabulary
Vocabularies reused● DCTerms● FOAF● DBPedia-ontology● RDF and RDF Schema (naturally)
New vocabulary● 10 classes● 14 properties
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Linked Data for Nobelprizes
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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
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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!
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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!
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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?
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How do we eat use our own dog food Linked Data?
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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
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Nobel Laureate
Truly Linked Nobel Prizes!
Nobel Prize
YAGO
Freebase
DBpedia
VIAF
Bio2RDF
Linked Life Data
...
...
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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
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Linked Data Browser
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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
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Phase 2 architecture
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Data, documentation, article, press
data.nobelprize.org
dokumentation
article on semanticweb.com
paper at ISWC-Dev
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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