Ontology Summit 2008

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Event Info [ Edit ]
Type	Workshop
Title	Ontology Summit 2008
Location	Gaithersburg, MD
When	2008/04/29 - 2008/04/29
Abstract
Webpage
More Details (out-links) Organizer(s) Peter Yim, Steve Ray Known participant(s) Li Ding, Deborah L. McGuinness, Mike Dean What Links Here (in-links)

Contents 1 sub-events 2 notes 2.1 general requirements 2.2 specific topics 2.3 ontology representation 2.4 ontology access 2.5 metadata for ontology 2.6 ontology infrastructure 2.7 ontology inference 2.7.1 ontology integration/mapping

sub-events

	Has speaker	Has abstract
Ontology Summit 2008/Ontology Of Ontologies	Michael Grüninger Patrick J. Hayes
Ontology Summit 2008/Quality and Gatekeeping	Fabian Neuhaus Berry Smith
Ontology Summit 2008/Repository Architecture	Michelle Raymond Ravi Sharma
Ontology Summit 2008/State of the Art of Ontology Repositories	Frank Olken
Ontology Summit 2008/Work Session	Leo Obrst Mark A. Musen

notes

general requirements

how to recognize an ontology?

• we need criteria to classify ontology
• exmaple ontologies
  • folksonomy
  • (note) taxonomy(is-a); partonomies (part-of);...
  • (note) ontology constraints: e.g. type; range/domain; cardinality; db-integrity (functional key; set relation; invert)
• (note) provenance: e.g. author(administrator; legislatures; judges; ...), citation; change of definition
  • (comment) Is FOAF instance is not an ontology? no (Frank)

who create/consume ontology

why repository is needed?

• support pulish and consume (access, search, reuse) ontologies
  • deal with ontologies in various form, language
  • provide persistent storage
  • provide friendly interface to matchmake ontology publishers and consumers
  • track usage of ontology (e.g. instances) as examples and reuse guideline
• support adding value to ontology
  • track metadata for ontology, e.g. annotation, mappings, change-history
  • publish and access ontology tools, e.g. editor, browser, computation tools

what tools are needed?

• (note) storage/index facility,
• (note) value-added tools, e.g. inference-materialization(frank); mappings (mark musen); tracking(me)

specific topics

ontology representation

types of KR approach

• Text Representation: e.g. wordnet? wikipedia
• Frame representation: e.g. obo (bio ontology)
• Graph representation: e.g. RDF; RDF schema; XLink
  • sub-types: Tree; DAG; directed graph; named graph;
• logic representation: e.g. DL; datalog; FOL; IKL;
  • rule based representation is easy to adopt

FAQ

• why not use relational database and FOL
• CWA and OWA

ontology access

granularity/modularity

• a collection of ontologies
• an ontology
• just a class in ontology?

search interface

• text
• semantic-structured
  • facet search

metadata for ontology

resources

• OMV
• EU provenance project and Open Provenance Model

ontology infrastructure

federated or centralized?

• (Comment) Google has been proved to be successful

component

• repository/archive
• registry/search engine
• annotation repository
• revision history

interface

• web interface
• web service interface: REST

ontology inference

issues

• (note) materializeation of partial orders

ontology integration/mapping

resources

• BioPortal by Mark Musen