Formal Representation and Harmonization of Open Government Data with Semantic Web Technologies
Semantic Web and Open Data
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Transcript of Semantic Web and Open Data
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Department of Bioinformatics - BiGCaT 1
Linked Open Data
Egon Willighagen (@egonwillighagen)May 2012, Maastricht, HARMONY 2012
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Department of Bioinformatics - BiGCaT 2
Open Data
• Use• Mix (or convert!)• Reshare
• Licenses–Creative Commons flavors, …
• Waivers–CCZero
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Department of Bioinformatics - BiGCaT 3
Linked Data: meaning
• Why Semantic Web?
– Unique identifiers: URLs (registries are redundant)
– Meaning: what is glucose? What are Mad2, CDK2, Pax-5 (BioModel of the month 12/05, CCZero)?
Ontologies, …
– Gene Ontology
– BioPortal, OLS, …
– ...
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Department of Bioinformatics - BiGCaT 4
Linked Data: linking
• Why Semantic Web?
– Web: stand-up scientist
– Linking: “Give me all models that predict something that predict glucose concentration”
– “What are the chemical properties of glucose”
BIOMD0000000051CCZero
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Department of Bioinformatics - BiGCaT 5
Resource Description Framework
RDF != RDF/XML
Wikipedia
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Department of Bioinformatics - BiGCaT 6
Linked Open Drug Data
M. SamWald, et al, Linked open drug data for pharmaceutical research and development, 2011, JChemInf.
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Department of Bioinformatics - BiGCaT 7
Linked Open Data
Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch. http://lod-cloud.net/ Sept 2011, CC-BY-SA.
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Department of Bioinformatics - BiGCaT 8
Linked Open Data in the Life Sciences
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Department of Bioinformatics - BiGCaT 9
Google ...
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Department of Bioinformatics - BiGCaT 10
W3C Health Care and Life Sciences interest group
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Department of Bioinformatics - BiGCaT 11
W3C Health Care and Life Sciences interest group
http://thecostofknowledge.com/
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Department of Bioinformatics - BiGCaT 12
Why does it matter again?
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Department of Bioinformatics - BiGCaT 13
Conclusion
● Open Data–Use, mix, reshare
● Linked Data● Open standard (RDF, …)
● … thus domain independent● Meaningful
● via ontologies and resolvable, unique identifiers