Vocabulary management: a Vocabulary management: a foundation for semantic foundation for semantic interoperability through interoperability through ontology development ontology development Roy Lowry British Oceanographic Data Centre GO-ESSP, Paris, May 2007
15
Embed
Vocabulary management: a foundation for semantic interoperability through ontology development Roy Lowry British Oceanographic Data Centre GO-ESSP, Paris,
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Vocabulary management: a foundation Vocabulary management: a foundation for semantic interoperability through for semantic interoperability through ontology development ontology development
Roy Lowry
British Oceanographic Data Centre
GO-ESSP, Paris, May 2007
Presentation OutlinePresentation Outline
• SeaDataNet Project
• SeaDataNet Metadata Evolution
• Controlled Vocabularies and SeaDataNet
• Mappings and Ontologies
SeaDataNet ProjectSeaDataNet Project
• SeaDataNet in a Nutshell
Combine over 40 oceanographic data centres across Europe into a single interoperable data system
Approach is to adopt established standards and technologies wherever possible
Two phases:
One brings 12 centres together with centralised metadata and distributed data as files. Due in autumn 2008
Two introduces data virtualisation, aggregation, cutting and 30 more centres. Due in 2010
The major problem facing the project is heterogeneous legacy content
• Problem is that whilst humans have the intelligence to read and understand plaintext it is of very limited use to a computer
• Consider some example EDMED plaintext parameter descriptions from a knowledge management viewpoint:
A wide variety of chemical and biological parameters CTD data Amplitude de l'echo retrodiffuse Cu, Zn, Fe, Pb, Cd, Cr, Ni in biota MACR0-MEIOFAUNA,SED BIOCHEMISTRY,ZOOPLANKTON,
• How does one derive this automatically from the plaintext ‘CTD data’, ‘T/S’, ‘temp+salin’, ’temperature and salinity’ and all the other variants in EDMED?