Ontology Investigations

1
Ontology Investigations

• Elizabeth Auden
• MSSL, AstroGrid
• VOTech DS5
• Converting UML to OWL
• A VOEvent Ontology
• Survey of Formal and Informal Ontologies
• VOTech Applications with Protégé
• Solar User-Appended Event Catalogue

2
Converting UML to OWL

• Goal Convert STC UML diagram to OWL.
• Obtained Visio 2003 UML diagram of STC schema
  from Arnold Rots.
• Poseidon tool requires XMI file as input to
  convert to OWL file, so download Microsoft
  XMIExprt utility for Visio 2003.
• Build XMIExprt in Visual Studio and save
  resulting file in Visio 2003 path open UML
  diagram and select XMI Export from add-ons menu.
• Failed! Visio.exe gives assertion error.
• Future Continue work to get XMI file from UML
  file when successful, put XMI file through
  Poseidon.
• http//wiki.eurovotech.org/bin/view/VOTech/Ontolog
  iesFromUML

3
A VOEvent Ontology

• Goal Create first draft of a VOEvent ontology.
• Used Protégé to build OWL file from VOEvent 0.90.
• Submitted first draft of VOEvent ontology to IVOA
  semantics mailing list for comment.
• Debate covered technical points of hierarchy and
  relationship as well as the semantics of how much
  scientific interpretation can be conveyed in a
  VOEvent packet ( see semantics_at_ivoa archive, 1
  7 June 2005).
• Future upgrade OWL file to use VOEvent 1.1,
  import STC ontology, import NASA units ontology.
• http//wiki.eurovotech.org/pub/VOTech/VoEventOntol
  ogy/VOEventOntology_v0.1.owl

4
Ontology Survey

• Goal Explore use of both formal and informal
  ontologies in academic research.
• Formal biomedicine has the most developed use
  of ontologies OWL extensions, software and
  papers available for download.
• Informal library sciences offer several
  decades experience in cataloguing and metadata.
  Phylogenies are also worth exploring software
  for biological classification.
• Best resources formal, OBO (Open Biomedical
  Ontologies) informal, MARC (Machine Readable
  Catalogue record) and Washington phylogeny
  repository.
• http//wiki.eurovotech.org/bin/view/VOTech/SurveyI
  nformalOntologies
• http//wiki.eurovotech.org/bin/view/VOTech/SurveyF
  ormalOntologies

5
Protégé VOTech Applications

• Goal Apply ontology research in other
  disciplines to VOTech applications.
• Convert Astronomical Thesaurus to an ontology.
• Poster "Evaluating Protégé OWL as Editing
  Environment for NCI Thesaurus". Lintern,
  Fergerson, Noy, Knublanch et al. CHISEL group,
  University of Victoria.
• Add journal articles to registry resource
  discovery
• Poster "Ontology Based Browsing of
  Bibliographic Metadata". Abaitua, Azpilla,
  Diaz-Labrador, Fernandez, Jacob, Sanchez.
• Add complex mathematical expression to resource
  discovery / workflows
• Poster "Representing Mathematical Problems by
  Means of Protégé OWL". Diz, Gil
• Create user-updated event catalogue using VOEvent
  ontology to correlate VOEvent packets
• Based on solar idea by Louise Harra at MSSL and
  email by Roy Williams
• Future Develop user-updated event catalogue.
• http//wiki.eurovotech.org/bin/view/VOTech/Protege
  Conference2005

6
SuaveCAT Proposal

• Goal Create solar user-appended solar VOEvent
  catalogue.
• First step create catalogue based on VOEvent
  schema with solar extensions.
• Identify metadata used in SEC and VOEvent schema
  build MySQL table.
• Build JSP front end with add, edit, delete and
  search facilities.
• Deploy DSA module to access catalogue and
  register with AstroGrid
• Second step use ontology tools to correlate
  VOEvent packets describing the same VOEvent
  inside the catalogue.
• Identify concepts in VOEvent and STC schemas that
  must be extended for solar metadata (such as
  coordinates).
• Build VOEvent ontology with solar extensions.
• Create tool that will correlate VOEvent packets
  using VOEvent ontology.
• Extend tool to correlate VOEvent packets and SEC
  entries.
• Use test VOEvent packets to run automated
  correlations tests with the SEC catalogue and
  write results to a database.
• Future proceed with implementation of catalogue.
• http//wiki.eurovotech.org/bin/view/VOTech/SolarVO
  EventCatalogue