Dublinked workshop dec15-2011

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Dublinked workshop dec15-2011

  1. 1. Semantic approach to Data Description Christopher Matheus Bell Labs Ireland/Alcatel-Lucent
  2. 2. Linked Data & Semantic Web• Linked Data Principles: – URI as names – http URI for name lookup – provide information about the data using RDF – link to other data sets• RDF: – Resource Description Framework – subject – predicate – object• RDFS and OWL – Ontology Languages – Used to define a language of discourse for a domain
  3. 3. Use of Ontologies• Data Modeling• Define formal “meaning” of terms• Solid foundation for common APIs• Consistency checking of data• Automatically infer implicit information
  4. 4. Potential Value to Dublinked• Describing Data Sets Domains • transportation – Improve precision of search • public • buses – Improve conceptual organization • schedules • arrival times – Connections between data sets • trains • traffic • video cameras• Describing Data • volume • motorways • national routes – Data models: • planning • water • XML schema •… • RDB schema • RDFS/OWL ontology – Inferring implicit information – Translating between data sets or data types • E.g., location representation, rdb2rdf, xsparql

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