Some headlines How DBpedia treats Wikipedia as a Database Wikipedia’s Next Big Thing: Wikidata, A Machine- Readable, User-Editable Database Funded By Google, Paul Allen And Others Google, Bing, Yahoo Start Schema.org for Content Markup
Linked Open Data cloudRichard Cyganiak and Anja Jentzschhttp://lod-cloud.net/Growing Linked Open Data Cloudhttp://youtu.be/TXFYSWuEOOw
Linking Open Data (LOD) cloud http://data.gov.uk/ http://data.gov/5
Web of Documents Web 3.0Web of (Linked) Data An Intro To The Semantic Web: Why You Need To Know About It Sooner Than Later , by Samantha Wong Image Source: Frederic Martin
Opportunities Data organized for associations. Data prepared for not yet defined use. Data ready for automation where computers can function alongside us to: Mitigate the complexity in discovering, accessing, connecting and interpreting information. Improve the productivity in managing information.
RDF Triples Resource Description Framework (RDF) A general model of how any piece of data, and representations of knowledge, can be expressed as so called triples. subject predicate object (or value) Stockholm type place Stockholm capital Sweden Stockholm subject Port cities in Sweden Stockholm areaCode “+46-8” “http://en.wikipedia.org/wiki/Stockholm” Stockholm primaryTopic
RDF Triples Triples can be aggregated into graphs with subject and objects as nodes, and predicates as arcs. type City capital Sweden Stockholm subject Port cities in Sweden areaCode “+46-8” “http://en.wikipedia.org/wiki/Stockholm” primaryTopic
RDF Triples Graphs of triples can be extended across different sources and for different purpose. type City type CountryCDISC capital Sweden Stockholm subject Port cities in Sweden subject CDISC Interchange EU 2012 areaCode “+46-8” Gothenburg “http://en.wikipedia.org/wiki/Stockholm” primaryTopic 12
RDF Triples RDF Schema and the RDF based Web Ontology Language (OWL) add a typing mechanism to classify subjects and objects into hierarchies. Thing subClass Place subClass subClassOrganization Event Adm.Area subClass subClass type subClass Business type City Event type CountryCDISC capital Sweden type Stockholm subject Port cities in Sweden subject CDISC Interchange EU 2012 areaCode “+46-8” Gothenburg “http://en.wikipedia.org/wiki/Stockholm” primaryTopic
RDF Triples Google, Bing (Microsoft) and Yahoo use OWL publish a joint vocabulary. Thing subClass Place subClass subClass Organization Event Adm.Area subClass subClass subClass Business City Event CountryExempelhttp://schema.org/City
4 Principles for Linked Data …… and 5 stars for Linked Open Data • Use URIs (Uniform Resource Identifiers) as names for things. • Use HTTP URIs so that people can look up (dereference) those names. • When someone looks up a URI, provide useful information. • Include links to other URIs so that they can discover more things. Source: Linked Open Data star scheme by example More resources introducing and describing the Linked Data idea
Linked Enterprise Data Source: What does Open Data mean for Enterprises? More resources introducing and describing the Linked Data idea
I’m encouraged by …• … what actually can be done by applying Linked Data principles, together with a stepwise implementation and pragmatic application of crucial building blocks, to … Health Care and Life Sciences (HCLS) Interest Group• … improve the research and commercial Linking Open Drug Data utility of information • Organized for associations • Prepared for not yet defined use EU project The Large Knowledge Collider Linked Life Data • Ready for automation where computers can function alongside us to A 2-page summary of our learnings from participating in these external projects: Mitigate the complexity in discovering, Linked Data in Pharma, 2011, Bo Andersson and Kerstin Forsberg accessing, connecting and interpreting information Improve the productivity in managing information
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