1. 1. Cubiss DataSpace door Roland Cornelissen `
2. 2. Cubiss DataSpace Deel 1: Wat is de Cubiss DataSpace? Deel 2: Hoe werkt het? Deel 3: Wat kun je ermee?
3. 3. Cubiss DataSpace: Wat is het? RDF DBMS (triplestore) SPARQL endpoint HTTP URI resolving (Linked Open) Data
4. 4. Cubiss DataSpace: Wat is het? Virtuoso Open Source (triple store): Virtuoso Universal Server is a middleware and database engine hybrid that combines the functionality of a traditional RDBMS, ORDBMS, virtual database, RDF, XML, free-text, web application server and file server functionality in a single system.
5. 5. Cubiss DataSpace: Wat is het? Virtuoso Open Source: SPARQL endpoint (http://data.cubiss.nl/sparql) Conductor (http://data.cubiss.nl/conductor) Facetted Browser (http://data.cubiss.nl/fct)
6. 6. Cubiss DataSpace: Wat is het? HTTP URI resolving: Internet = TCP/IP,HTTP,FTP,SMTP,URL,etc... Hyper Text Transfer Protocol: The Hypertext Transfer Protocol (HTTP) is an application protocol for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web.
7. 7. Cubiss DataSpace: Wat is het? URI = Uniform Resource Identifier URL == URI maar URI =/= URL IRI == URI maar URI =/= IRI IRI URI URL
8. 8. Cubiss DataSpace: Wat is het? Content negotiation: Content negotiation is a mechanism defined in the HTTP specification that makes it possible to serve different versions of a document (or more generally, a resource representation) at the same URI, so that user agents can specify which version fit their capabilities the best.
9. 9. Cubiss DataSpace: Wat is het? Linked Open Data = RDF data + eisen: make your stuff available on the Web (whatever format) under an open license make it available as structured data (e.g., Excel instead of image scan of a table) use non-proprietary formats (e.g., CSV instead of Excel) use URIs to denote things, so that people can point at your stuff link your data to other data to provide context
10. 10. Cubiss DataSpace: Wat is het? RDF data = triples
11. 11. Cubiss DataSpace: Hoe werkt het? De LOD cyclus:
12. 12. Cubiss DataSpace: Hoe werkt het? Management van data: Graphs (logische clusters) Data Metadata (ontologie) Data kwaliteitsbewaking
13. 13. Cubiss DataSpace: Hoe werkt het? Data authoring (bewerken) OntoWiki; OntoWiki facilitates the visual presentation of a knowledge base as an information map, with different views on instance data. It enables intuitive authoring of semantic content, with an inline editing mode for editing RDF content, similar to WYSIWIG for text documents.
14. 14. Cubiss DataSpace: Hoe werkt het? Data authoring (bewerken) Presentatie Aanvulling Linken Correctie http://data.cubiss.nl/OntoWiki
15. 15. Cubiss DataSpace: Hoe werkt het? Links: Over relaties tussen data... ;) Ontology Authorities Graphs (domain) Resources
16. 16. Cubiss DataSpace: Hoe werkt het? Links: Matchen van concepten in verschillende datasets. Bijvoorbeeld SILK Bijvoorbeeld GATE Basis benodigdheden: RDF en SPARQL
17. 17. Cubiss DataSpace: Hoe werkt het?
18. 18. Cubiss DataSpace: Wat kun je ermee? http://data.dws.informatik.uni-mannheim.de/lodcloud/2014/