Semantic eScience Meeting March 30, 2015

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General Information

Dates and Speakers

Date Weekday Time Speaker Topic
Feb 02 Monday 11am ET Linyun Fu Ontology Interest Group
Feb 16 Monday 11am ET Stephan Zednik Vocabulary Services
Mar 02 Monday 11am ET NA Catchups & Discussion
Mar 16 Monday 11am ET Linyun Fu Linked Vocabulary API
Mar 30 Monday 11am ET NA General Discussions
Apr 13 Monday 11am ET
Apr 27 Monday 11am ET
May 11 Monday 11am ET

Remote Users:

1.  Please join my meeting, Mar 30, 2015 at 11:00 AM EDT.

2.  Use your microphone and speakers (VoIP) - a headset is recommended. Or, call in using your telephone.

Dial +1 (872) 240-3412

Access Code: 297-053-517

Audio PIN: Shown after joining the meeting

Meeting ID: 297-053-517


  • Linyun (sick, stay at home)
  • Hao (rest well Linyun!)
  • Peter
  • Patrick
  • anirudh
  • Apurva
  • Corey
  • Han
  • Marshall
  • Benno

Topics of Interests

  • DOAP (Description of a Project) - representing software and software versions
    • Use case 1 - User requests aggregation of 3 datasets to be returned as a netcdf file from OPeNDAP Hyrax (data server)
      • request handled by multiple modules within OPeNDAP Hyrax
      • used in generation of provenance for the request - response object derived from the 3 datasets
    • Use case 2 - On the TW servers we have different versions of different pieces of software installed and we want to keep track of what’s installed where
  • PURL (persistent uniform resource locator)
  • Ontology Evolution (Versioning)
    • SYSE
    • -> ontology best practices hackpad
    • Never remove a concept or property
    • If a concept or property is modified then it receives a new URI, it’s a new concept/property basically
    • major/minor changes
    • provenance/relationships/hierachials
    • "deprecated" sign
    • vocabulary vesioning: Marshall for SKOS, there are "active" and "inactive" annotations to indicate whether elements are part of the current ontology
    • the triangle? anybody can paste a picture?
    • software, database, provenance, schema, ... split tasks
    • Use Cases
      • change the description of a concept
      • add a new concept
      • remove a concept
      • simple typo in a description
    • ontology evolution literature, ISWC, ESWC, ASWC conference proceedings
    • RDA has an interest group related to this
  • Data Management for the lab (Discussion)
    • what is data management? Is it part of data science? What all goes into the management of data? Backups vs. Archives?
    • what is data?
    • dspace vs ckan vs ???
  • Dataset ontologies (dcat. A new one from w3c? Others?)


  • Quick Recap
  • Discussion (15-20 min max)
  • Summary and What’s Next (3-5 min max)

Action Items from Last Time

  • Patrick: NOT YET - Use rpi handle system to generate handles for all of our instances
  • Patrick: More of a suggestion - Would love to see someone look into purl and give a presentation!


Action Items