Semantic Web and Open Data

Linked Open Data Egon Willighagen (@egonwillighagen) May 2012, Maastricht, HARMONY 2012Department of Bioinformatics - BiGCaT 1

Open Data• Use• Mix (or convert!)• Reshare• Licenses – Creative Commons flavors, …• Waivers – CCZeroDepartment of Bioinformatics - BiGCaT 2

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, … – ... Department of Bioinformatics - BiGCaT 3

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”BIOMD0000000051CCZeroDepartment of Bioinformatics - BiGCaT 4

Resource Description Framework RDF != RDF/XMLWikipediaDepartment of Bioinformatics - BiGCaT 5

Linked Open Drug DataM. SamWald, et al, Linked open drug data for pharmaceutical research and development,2011, JChemInf.Department of Bioinformatics - BiGCaT 6

Linked Open DataLinking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch.http://lod-cloud.net/ Sept 2011, CC-BY-SA.Department of Bioinformatics - BiGCaT 7

Linked Open Data in the Life SciencesDepartment of Bioinformatics - BiGCaT 8

Google ...Department of Bioinformatics - BiGCaT 9

W3C Health Care and Life Sciencesinterest groupDepartment of Bioinformatics - BiGCaT 10

W3C Health Care and Life Sciencesinterest group http://thecostofknowledge.com/Department of Bioinformatics - BiGCaT 11

Why does it matter again?Department of Bioinformatics - BiGCaT 12

Conclusion● Open Data – Use, mix, reshare● Linked Data ● Open standard (RDF, …) ● … thus domain independent ● Meaningful ● via ontologies and resolvable, unique identifiersDepartment of Bioinformatics - BiGCaT 13

Semantic Web and Open Data

by Egon Willighagen

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