Controlled Vocabulary

1
Controlled Vocabulary

• Giri Palanisamy
• Eda C. Melendez-Colom
• Corinna Gries
• Duane Costa
• John Porter

2
Desired Result- Dream Systems

• Ecological Ontologies as an endpoint
• But better goal for now set up community site for
  annotating data that could provide information
  for ontology construction
• Concept mapping
• Can pull out keywords and have users list synonym
• Corrina has student working on text analysis,
  including proximity between words
• Developing related words
• Lets you make choices about how words should be
  used
• Synonyms dont come together in a text

3
Desired Result/Dream System

• NBII Thesaurus web service
• Already have a head start
• May be more productive for LTER to help make them
  have a better system that LTER can use
• LTER is already in NBII system and there are
  capabilities to link there
• EIONET also has thesaurus served through NBII
• Will be adding another
• SEEK has annotation language that they use inside
  KEPLER..
• Also may be working annotating attributes
• Used to enforce consistency

4
Duanes Dream

• Rich and complete browse hierarchy for use in
  Metacat interface
• Not 10 levels! Maybe 4 or 5 levels
• Enhance metacat queries to extend keywords with
  potential related keywords
• Keyword enrichment tool that would enrich keyword
  section of EML document
• Add keywords
• Tool suggests additional keywords to add

5
Thesauri/Ontologies
Data sets
6
Issues

• Different standards for online ontologies (SKOS
  vs TAPR etc.)
• Can you convert? NBII is looking at.
• Would like to have option of matching thesarus
  keywords in EML documents
• Thesaurus is not explicitly a hierarchy.

7
Discussion on Automation

• NBII has worked on some tools
• Could make enrichment of EML documents by
  keywords a USER function
• Learn from users
• Now have audited metacat searches so have a
  database with 3 months worth of queries

8
Demo of Systems

• CAP Semantic Research
• http//149.169.202.248080/ecologyes
• Development server
• NBII Thesaurus Site
• http//nbii.ornl.gov/thesaurus

9
Ideas

• Publication on LTER vocabulary and relationship
  to NBII Thesaurus and other resources
• Send list to NBII, they will return report on
  hits
• How can LTER contribute?
• Corrinas system could be used to help propose
  new information
• Can add information to NBII Thesaurus.

10
Challenges

• Evaluating lists/thesauri/ontologies that would
  benefit LTER
• Linking existing EML documents with context from
  a list/thesaurus/ontology
• Developing a dataset hierarchy from the
  interaction of LTER data catalog with
  list/thesaurus/ontology

11
Steps

• Need training on how to use web services for NBII
  access
• Duane, Corinna, Inigo
• Send list of terms for checking in NBII
• Need to finalize multi-word keyword list
• Revise Token/Word list to update
• Human input?
• Further Discussion Workshop at NCEAS?
• Relationships between LTER, SEEK and NBII
• Editing, sharing, CAP work
• How to harvest user input to help educate
  system
• CAP Student can participate

12
Next Steps

• Corinna will check with SEEK on opportunities
  there
• Giri will check with Mike Frame on NBII buy-in
• VTC Last Week of August 2007??
• Develop plans for future activities
• Workshops
• Visits
• Activities